Engineering Thermodynamics
Zeroth law of thermodynamics

States that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other
Deals with reversibility and irreversibility of process
Deals with conversion of mass and energy
Deals with heat engines

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Engineering Thermodynamics
Gases have

Two values of specific heat
Under some conditions one value and sometimes two values of specific heat
Only one value of specific heat
No value of specific heat

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