This document discusses the three states of matter - gases, liquids, and solids. It describes the properties and behavior of particles in each state. Gases have no fixed shape or volume and particles are far apart. Liquids take the shape of their container and particles have limited movement. Solids have fixed shape and volume, particles are touching and arranged regularly in crystalline structures. The document then examines the kinetic theory of gases and ideal gas laws. It discusses limitations of ideal gas behavior and different solid state structures like ionic, metallic, molecular and giant molecular lattices. Ceramics and their properties are also covered. Finally, the importance of conserving resources through metal recycling is discussed.
This ppt was made for our stupid projects..... The main purpose behind uploading this ppt is that no one should suffer like us and waste their time behind these stupid things... concentrate on your studies..
The attractive force which holds various constituents (atom, ions, etc.) together and stabilizes them by the overall loss of energy is known as chemical bonding. Therefore, it can be understood that chemical compounds are reliant on the strength of the chemical bonds between its constituents; The stronger the bonding between the constituents, the more stable the resulting compound would be.
This ppt was made for our stupid projects..... The main purpose behind uploading this ppt is that no one should suffer like us and waste their time behind these stupid things... concentrate on your studies..
The attractive force which holds various constituents (atom, ions, etc.) together and stabilizes them by the overall loss of energy is known as chemical bonding. Therefore, it can be understood that chemical compounds are reliant on the strength of the chemical bonds between its constituents; The stronger the bonding between the constituents, the more stable the resulting compound would be.
Pengenalan aktivitas air dan pertumbuhan mikroba by ItsDanicaPutrysPrincess is Ntxhais
Mengenal Aw, Isoterm Sorpsi, dan hubungannya dengan pertumbuhan mikroba dalam bahan pangan secara umumnya
by --- ItsDanicaPutry's, Universitas Sebelas Maret
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structure_of_matter general classes and principles of adhesion.pptAryaKrishnan59
Structure of Matter:
Matter consists of atoms, which are the fundamental building blocks. Here are some key points:
Atoms: These are indivisible and indestructible particles. Each element has identical atoms in terms of mass and properties.
Compounds: Formed by combining different kinds of atoms.
Chemical Reactions: Involve rearrangements of atoms.
Principles of Adhesion in Dentistry:
Adhesion plays a crucial role in dental treatments. It involves the attachment and binding of one substance to another. Here’s what you need to know:
Bonding System Functions:
Resistance to Separation: Prevents the adherend substrate (e.g., enamel, dentin, metal, composite, ceramic) from separating from restorative or cementing materials.
Stress Distribution: Distributes stress along bonded interfaces.
Interface Sealing: Achieved via adhesive bonding between materials1.
Mechanisms of Adhesion:
Chemical Adhesion: Involves molecular or atomic attraction between contacting surfaces.
Mechanical Adhesion: Results from structural interlocking.
Combination: Adhesion can occur through both chemical and mechanical mechanisms23.
Requirements for Good Adhesion:
Wetting: Sufficient wetting of the adhesive.
Low Viscosity: Allows proper flow and penetration.
Surface Texture: Rough surface texture of the adherend.
High Surface Energy: Promotes effective bonding4.
In summary, understanding the structure of matter and principles of adhesion is essential for successful dental procedures
Ppt makalah kelompok 1 ---daya saing komoditas produksi pertanianPrincess is Ntxhais
This is my PPT edit, before i am edit, this presentation was look a like "Power Naration" , I am only design this presentation and 5 others built the topic from the references and our paper.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
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Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Digital Tools and AI for Teaching Learning and Research
Chemistry - State of Matter ;)
1. Chemistry AS level Cambridge University press
By: Danica Prinzessin (Danica Putri)
2. States of matter
Gas:
1. No fixed shape
or volume
2. Randomly
arraged
3. Far apart, can
be compressed
4. Move freely in
all directions
Liquid:
1. Follow the shape of the
container
2. Close together
3. Fixed volume
4. Compressed slighty
5. Arraged fairly randomly
6. Limited movement in all
directions
Solid:
1. Fixed shape and volume
2. Touching each other
3. Can’t be compressed
4. Regular arrangement
5. Can vibrate only
4. The Gasseous State
Kinetic Theory of Gases:
1. The gas molecule move rapidly and
randomly.
2. The distance between the gas molecule
is much greater than the diameter of the
volume.
3. No attraction or repulsion between the
molecules.
4. All collision between particle are elastic.
5. The temperature of the gas is related to
the average kinetic energy of the
molecules.
Ideal Gases:
The volume depends on:
1. Pressure, measure in pascals (Pa)
2. Temperature, measure in Kelvin (K), 0
celcius=273K
General gas equation:
General gas equation
Gas pressure
Where:
p=pressure [Pa; N / m2]
V=volume [m3]
m=mass [kg]
M=molar mass [kg / kmol]
R=general gas constant R = 8.314510 kJ /
(kmol K)
T=thermodynamic temperature [K]
n=molecular number density [1 / m3]
k=Boltzmann's constant k = 1.380 x10-
23 J/K
General gas e.q combined with the gass
law:
5. Limitations of the ideal gas laws:
Real gas don’t obey the K.E.Theory in 2
ways:
1. There isn’t zero attraction between the
molecules.
2. Can’t ignore the volume of the
molecules themselves.
These differences are especially noticeable
at very high pressures and very lown
temperatures, under this conditions:
1. The molecule are close to each other.
2. Not negligible volume compared with
the volume of the container.
3. Van der Waals’ or dipole-dipole forces
attraction.
4. Attractive forces pull the molecules
towards each other.
5. The effective volume is smaller than
expected for an ideal gas.
Deviated to ideal gas: HCl
Not approaches ideal gas behavior: NH4
Approaches ideal gas behavior: He
6. The Liquid State
Boiling Point:
Liquid to Gass
Energy transferred make the particles move faster.
The forces attraction of the prticles weaker.
The particle with most energy are the first to
escape from the forces holding.
Evaporates.
Move fast and randomly , then the particles spread
out.
Melting Point:
Solid to Liquid
The particles vibrate more vigorously.
The forces attraction of particles are weaker.
Temperature is higher than 0 degree
celcius.
Freezing Point:
Liquid to Solid
Loss kinetic energy.
Increasing forces attraction of particles .
7. The Solid State Lattice:
Ions, atoms, or molcules
arrangement in the solid
substance.
Structure of solid
1. Ionic lattices
Characteristic:
Hard.
Brittle.
High melting points.
High boiling points.
Many of them are soluble in water.
Only conduct electricity when molten or
in solution.
Giant Ionic: (e.g. NaCl, MgO)
Dissolvent in water.
Free ions.
Conduct electricity.
Ionic bond of NaCl, it also
Giant ionic same as MgO
8. 2. Metallic Lattices
Characteristic:
The layers can slide over each other.
Delocalised elestron.
Lattice of kations.
Shiny.
Malleable.
Conduct electricity.
When the layer slide, new metallic
bond are easily re-formed between
ions.
9. Mixture of 2 or more metals or metal
with non-metal.
The metal added to create the alloy
becomes part of the crystal lattice of
the other metal.
Characteristic:
The presence of different sized
metal ions makes the arrangement
of tle lattices less regular.
Layers can’t slide easily.
Stronger than pure metal.
e.g.
1. Zinc 30% and Copper 70%.
2. Aluminium with other elements (such as
coper, magnesium, silicone, manganese).
3. Alloys
10. 4. Simple molecular
Characteristic:
Can forms crystals.
Weak van der waals’ forces.
Strong covalent bonds.
Easily broken when heated
Forms crystal lattice.
Allotrops: different crystalline or
molecular forms of the same element.
Hydrogen bond:
H binds with element F,N, and O
Characteristic:
High boiling point
Interact with other atoms are negative or
electron-rich.
Iodine crystal and its’
structure
11. 5. Giant mollecular structure
Graphite
The carbon atoms are arranged in
planar layer, form hexagon layers.
Each carbon atom is joined to 3 other
carbon atoms by strong covalent
bonds.
4th electron of each carbon atom
occupies at p orbital.
Softness, the layers can slide.
Good conductor of electricity.
High melting and boiling points.
e.g. Pencil, lubricant.
12. Diamond
Each carbon atom forms 4 covalent
bonds with other carbon atoms.
High melting points and boiling
ponts.
Hardness.
Doesn’t conduct electricity or heat.
Artifical diamonds can be made by
heating other forms of carbon under
high pressure.
13. Silicon (IV)oxide
Structure smiliar to diamond.
Each oxygen atom is bonded to only
2 silicon atoms.
Each silicon atom is bonded to 4
oxygen atoms.
Colourless crystals.
High melting point and boiling
point.
Doesn’t conduct electricity.
Hardness.
14. 6. Ceramics
Ceramics: An inorganic non-metallic
solid which is prepared by heating a
substance or mixture of substances to a
high temperature.
Characteristic:
Very high melting point and boiling
points.
Don’t conduct electricity, they’re
electrical insulators.
Don’t conduct heat, no free
electrons.
Retain strength at high temperature
above 550 degree celcius
(refractories).
Hard.
Unreactive chemically.
15. Uses of ceramics:
Ceramics containing Magnesium
oxide:
Refractory in furnace linings.
Electrical insulators in industrial
electrical cabel.
Fire resistant wall furnaces.
Ceramics containing Aluminium
Oxide:
Refractory in furnace linings.
As an abrasive for grinding hard
materials.
In transparent aluminium oxide for
furnaces and military vechiles.
Ceramics containing silicon(IV)oxide:
Refractory in furnace linings.
As an abrasive.
Manufacture of glass.
16. Conserving material
There is only a limited supply of
metal ores in the earth.
Huge wasre dumps and landfill sites
scarring the landscape and problem
swith litter.
Recycling advantages:
Saves energy.
Conserves supplies of the ore.
Less waste.
Landfill sites don’t get filled up
fast.
Cheaper than extracting the
metal from the ore.
17. 2 metals are easily to recycle:
Copper and Aluminium.
Copper:
Less energy is needed to extract
and refine the recycled copper.
Less energy is needed to recycle
copper than is needed to transport
copper ore to the smelting plant
and extract copper from it.
Aluminium:
Isn’t necessary to extract the
aluminium is much cheaper than
extracting aluminium from bauxite
ore.
Doesn’t need the treatment of
bauxite.
The aluminium scrap needs less
energy to melt it.
The expensive electrolysis of
aluminium oxide doesn’t need to
be carried out.