What is heat engine ?
Answer:- Heat engine is a device which converts heat into mechanical work.
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How refrigerator work ?
Answer:- In every refrigerator their is a liquid present called refrigerant.The refrigerant passes through a expansion device which expand(cool) the refrigerant and convert the refrigerant into a gas.That gas absorb heat from the objects which are place in refrigerator for cooling. So the objects became cool.Then the gas pass through evaporation tube and go towards compresser.The compresser compresses the hot gas.Then the hot, compress gas passed through condenser pipe,and releases heat into the surrounding and convert again into liquid refrigerant.This process occur reaptedly in refrigerator and the objects became convert into a cool object.This is the basic working principle of a refrigerator.
What is Hess's law ?
Answer:- The enthalpy change during a chemical reaction is the same whether a reaction takes place in one or in several steps.
What is Isochoric process ?
Answer:- A process is said to be Isochoric if the volume of the system remains constant during each step of the process.
What is zeroth law of thermodynamic ?
Answer:- The zeroth law of thermodynamics states that if two thermodynamic system each in thermal equilibrium with a third system,then they are in thermal equilibrium with each other. According to this law If Temperature of A = Temperature of C & Temperature of B = Temperature of C then, Temperature of A=Temperature of B