a presentation slide.

2. Arafat Rahman. ID: BTE01205703
Masud Rana. ID: BTE01205705

3. The word thermodynamics comes from the Greek words
therme (heat) and dynamis (power).
Thermodynamics is both a branch of physics and an
engineering science. Thermodynamics is the science of
energy transfer and its effects on the physical properties of
the substances.

4. There are three types of energy in thermodynamics system.
Energy
Potential energy Kinetic Energy Internal energy

5. SPECIFIC HEAT
 The specific heat is the amount of heat per unit mass
required to raise the temperature by one degree Celsius.
 The relationship between heat and temperature change is
usually expressed in the form shown below where c is the
specific heat.

6. It’s defined as a definite area or a space where some
thermodynamics process takes place.
There are three classes of thermodynamics system
 Open System
 Close System
 Isolated System

7. The law’s of thermodynamics are:-
Zeroth Law
First Law
Second Law
Third Law

8. If two systems are each in thermal equilibrium with a
third, they are also in thermal equilibrium with each
other.

9. The change in internal energy of a system (ΔU)
is due to heat gain or loss (Q) and work done
(W)

10. There are 2 statements of second law’s :
Kelvin- Planck Statement:
It is impossible for a heat engine to produce net work in a complete
cycle if it exchanges heat only with bodies at a single fixed
temperature.
Clausius Statements
It is impossible to construct a device which, operating in a cycle, will
produce no effect other than the transfer of heat from a colder to a
hotter body.

11. The entropy change associated with any condensed system
undergoing a reversible isothermal process approaches
zero as the temperature at which it is performed
approaches 0 K.

12.  All types of vehicles
 Refrigerator & industrial
refrigeration system
 Air & gas Compressors
 Heat transfer
 Power plants
 Renewable energy sources