This document provides an overview of the application of phase rule to a three component system of acetic acid, chloroform, and water. It defines key terms like phases, components, and degrees of freedom. It explains Gibbs phase rule and how it applies to a three component system. Specifically, it discusses how the water-acetic acid-chloroform system can be represented on a triangular phase diagram, with acetic acid enhancing the miscibility of water and chloroform. The document outlines how the system transitions from two heterogeneous phases to a single homogeneous phase as the amount of acetic acid is increased.
Classification Of Mechanisms, Ligand Substitution In Octahedral Complexes Without Breaking Metal-ligand Bond, Substitution Reaction In Square Planar Complexes, Factors Which Affect The Rate Of Substitution, Trans Effect (Labilizing Effect), Theories and applications Of Trans Effect
Classification Of Mechanisms, Ligand Substitution In Octahedral Complexes Without Breaking Metal-ligand Bond, Substitution Reaction In Square Planar Complexes, Factors Which Affect The Rate Of Substitution, Trans Effect (Labilizing Effect), Theories and applications Of Trans Effect
PTC IS THE PHASE TRANSFER CATALYSIS HERE TYPES OF PTC ARE DISCUSSED , THEORIES OF CATALYSIS AND MECHANISM OF PTC, ADVANTAGES OF PTC, APPLICATION OF PTC
THE PHASE RULE
phase rule
degree of freedom in mixture
one component system
two component system
pressure temperature diagram sulfur hydrogen
eutectic eutectoid mixture
PTC IS THE PHASE TRANSFER CATALYSIS HERE TYPES OF PTC ARE DISCUSSED , THEORIES OF CATALYSIS AND MECHANISM OF PTC, ADVANTAGES OF PTC, APPLICATION OF PTC
THE PHASE RULE
phase rule
degree of freedom in mixture
one component system
two component system
pressure temperature diagram sulfur hydrogen
eutectic eutectoid mixture
1.Dew Point with non-condensable components
2.Flash with liquid vapor products
3.Condenser and Flash drum for ammonia synthesis
4.Azeotrope
Ideal Solutions vs. Azeotropes
Types of Azeotropes
• Number of Constituents:
• Heterogeneous or Homogeneous:
• Positive or Negative:
5.Enthalpy change of mixing
6.Solutropes
its the ppt about phase rule which is the part of physical and inorganic chemistry in GTU. it explains how the phase rule is applicable in chemical eng.
Phase equilibria: phase, components and degrees of freedom. The phase rule and its
thermodynamic derivation. The phase diagrams of water and sulphur systems, partially
miscible liquid pairs: the phenol and water and nicotine-water systems. Completely
miscible liquid pairs and their separation by fractional distillation. Freeze drying
(lyophilization).
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Similar to Phase Rule in three component system (20)
This pdf is about the Schizophrenia.
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Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
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Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
Body fluids_tonicity_dehydration_hypovolemia_hypervolemia.pptx
Phase Rule in three component system
1. Samrat Prithviraj Chauhan
Government College,Ajmer
Seminar Project
Department of Chemistry
Submitted by – Deepak Gahlot
Class – M.Sc. Semester I
Topic : Application of phase rule to three component system –
acetic acid + chloroform + water.
2021-2022
2. • Basics.
• Phase rule.
• Three component system.
• Graphical representation of ternary system.
• Water-acetic acid-chloroform system.
• Conclusion.
• Reference.
3. Homogeneous solution : A homogeneous solution means a
solution which is of uniform (similar) composition. For
example – 1 spoon sugar mixed in 1 glass of water.
Heterogeneous solution : A heterogeneous solution is one
which is of distinct composition (looks different).For example
– sand and water solution.
Miscible liquid : Miscible liquids are those which will
completely dissolve/mix in each other. For example –
lemonade.
Partially miscible liquids : Partially miscible liquids are those
liquids which will not completely dissolve or mix but some
amount of them will. For example – 1-Butanol and water.
4. Immiscible liquids : Immiscible liquids are those which will not
mix at all and will remain in separate layers. For example - oil
and water.
Phase : homogeneous, physically distinct, mechanically
separable part of a system and is in dynamic equilibrium with
each other. For example – oil, water and sugar solution.
Component : It means the minimum number of constituents
sufficient for determining the composition of all phases of a
system. For example – ice,water and water vapour exists in 3
phases but their constituent element is same (H2O),hence 1
component system.
Degree of freedom : It is the minimum no. of independent
variables such as temperature,pressure and concentration
that must be ascertained so that a given system in equilibrium
is completely defined.For example: water and water vapour is
a 2 phase system having DOF 1 since at 100°C,pressure is 1 atm.
5. The phase rule was discovered by “Josiah Willard Gibbs”
in 1875 and is known as Gibbs phase rule.It states that in
a heterogeneous system in equilibrium,the sum of no. of
phases and number of degrees of freedom is equal to the
number of components plus two.Mathematically,it is
expressed as –
where P = number of phases
F = number of degree of freedom
C = number of components
2 = additional variable of temperature and pressure
P + F = C + 2
6. For three component system,phase rule equation becomes
If we consider minimum no. of phases (P=1),then to represent
three component system , 4 DOF i.e; 4 variables viz.
pressure,temperature,and composition of two components
will be required.
Graphical representation with 4 variables is
not possible,so 2 variables pressure and temperature are kept
constant.Hence reduced phase rule for 3 component system is
F = C - P + 2 = 3 - P + 2 = 5 - P
F = 3 - P
7. The popular method of representing a ternary system was given
by Stokes & Roozeboom and is called as triangular plot. In this
method , variation of compositions of three components at
constant pressure and temperature are expressed by means
of equilateral triangle.Each apex of the triangle is taken as 100
% (weight or mole)of the component with which it is designated.
Each side of the triangle is divided into 10 equal parts and then
lines parallel to three sides are drawn.Any point on any side of
the triangle referstocompositionof2 components in the system.
While any point in the triangle represents compositions of all the
3 components.
9. This 3 component liquid system is a type of one pair of partially
miscible liquids.Of the three components H2O,CHCl3 & CH3COOH
the acetic acid is completely miscible with water and chloroform
separately but water and chloroform are only partially miscible
between themselves.
H2O & CHCl3 being partially miscible forms
layers each saturated with other component.The mixture will
form two conjugate solutions given by the points b and c as
shown in the graph.
10. When CH3COOH is added to this solution,the miscibility of H2O
& CHCl3 is enhanced.’A’ will distribute itself between the two
layers and the layers become conjugate ternary solutions.The
composition of these two solutions are given by the points b’
and c’.The solution is still heterogeneous.
As more and more CH3COOH is added,
then the two layers emerge into a clear solution forming only
one layer containing all the three liquids.
The points come more closer till it merges to a
point K. The composition of two layers at this point is same and
this K point is called as the plait point or isothermal critical
point.
11. Any solution outside the curve XKY will be homogeneous
and inside it will be heterogeneous. This curve is known
as binodal curve.The points joined together form parallel
lines and are called as tie lines.
These tie lines are parallel
because the added constituent ( acetic acid ) distributes
itself equally in both the layers of water and chloroform.
Thus, they are horizontal tie lines in this case. The tie line
will not be parallel always but in slope form if the added
component dissolves more in one than the other.
12. Fig. – Three liquids with one partially miscible pair.
13. Ternary phase diagram construction is the best approach
to study all the types of formulations by mixing of water,
oil and and surfactant.It provides the scientific basis for
the screening of different formulation components and
determination of optimum conditions for existence of
equilibrium.
It is widely used in research and formulation studies of
various pharmaceutical formulations and process.
Spectrometric study of Au,Ag and Cu to find the impurity
we use this 3 component phase rule application.
14. Advanced physical chemistry by D.N.Bajpai (S.Chand),
page no. 393…
Advanced physical chemistry by Gurtu & Gurtu (Pragati
Prakashan),page no. 240…
Advanced Physical Chemistry by Puri Sharma Pathania,
page number 692…