Chittaranjan Dasgupta and Asok Kumar Das Solutions for Chapter: Thermodynamics, Exercise 1: EXERCISE

A gas is compressed to half its volume by an isothermal process. When will the change in pressure be greater ?

Explain how the work done by a gas may be determined from its $\mathrm{P}-\mathrm{V}$ diagram.

What are the main causes that make a process irreversible?

Explain how a refrigerator works ? What is difference between a refrigerator and a heat pump ?

What is upper limit of the efficiency of a heat engine working between two temperatures $T_1$ and $T_2$ ?

Define entropy of a system. Why a reversible adiabatic process is called an isentropic process?

What does happen to the entropy of a system in a natural process.

State second law of thermodynamics in terms of entropy.