Question

The value of ∆S for the spontaneous process is

Answer 1

Entropy change

• The entropy change is inversely proportional to the temperature.
• Entropy for a spontaneous process increases till it reaches the maximum and at equilibrium, the change in entropy is zero.

Entropy of system

The total entropy of the system can be given by the following equation

$\Delta S_{\text{total}}=\Delta S_{\text{sys}}+\Delta S_{\text{surr}}$

Where,

ΔS_total= total entropy change for the process

ΔS_sys = entropy change of the system

ΔS_surr = entropy change of the surrounding

• For a spontaneous process, the total entropy change, $\Delta S_{\text{total}}$ is always greater than zero.