Q38 / 180 · AIIMS 2006 · Chemistry

For a spontaneous process the correct statement is

  • A
    entropy of the system always increases
  • B
    free energy of the system always increases
  • C
    total entropy change is always negative
  • Correct answer
    D
    total entropy change is always positive.

Solution

$\Delta S_{\text {total }}=\Delta S_{\text {system }}+\Delta S_{\text {surroundings }}$ For a spontaneous process $\Delta S_{\text {total }}$ must be positive. i.e. $\Delta S_{\text {total }}>0$.

Hence, the correct answer is option: 'D'.

Relevant Questions