Question

In a reversible process, system goes from an initial state A to a final state B. Which of the following is true?

• A. The heat required from state A to state B is zero.
• B. The work done from state A to state B is zero.
• C. The heat required from state A to state B and back to state A is zero.
• D. The heat required from state A to state B and back to state A is non-zero.

Answer 1

The correct option is C The heat required from state A to state B and back to state A is zero.

In thermodynamics, a reversible process is a process whose direction can be "reversed" by inducing infinitesimal changes to some property of the system via its surroundings, with no increase in entropy. Throughout the entire reversible process, the system is in thermodynamic equilibrium with its surroundings.In a reversible process, system goes from an initial state A to a final state B the heat required from state A to state B and back to state A is zero.