Isochoric process which volume remains constant

1. Zeroth law of Thermodynamics:

It states that if two systems are each in thermal equilibrium with a third system then all the three systems are in thermal equilibrium with each other.

4. Third Law of thermodynamics:

It states that when a system approaches absolute zero, the entropy of the system approaches a minimum value and all process get stop. Absolute zero can be achieved when the temperature reaches to -273.15^◦ C.

• Laws of Thermodynamics

• Entropy

IC engines and refrigeration are one of the best and mostly used application of thermodynamics. This is discussed in the Gas Power Cycles. There are many thermodynamics cycles that can be used as working cycle of IC engines like Diesel cycle, Otto cycle, Dual cycle, Ericsson cycle, Atkinson cycle, etc. It has widely used applications in every industry.