Assertion :- When a rubber band is stretched entropy increases.
Reason :- During expansion entropy increases.

The entropy of a gas increases on its expansion . Why?

Assertion : In free expansion of an ideal gas, the entropy increases. Reason : Entropy increases in all natural processes.

For stretched rubber, Entropy

For stretched rubber, Entropy

Assertion : In an isolated system the entropy increases. Reason : The processes in an isolated system are adiabatic.

Assertion : In an isolated system the entropy increases. Reason : The processes in an isolated system are adiabatic.

Assertion : In an isolated system the entropy increases. Reason : The processes in an isolated system are adiabatic.