Q3 / 110 · VITEEE 2022 · Chemistry

Considering entropy (\(\mathrm{S}\)) as a thermodynamic parameter, the criterion for the spontaneity of any process is

  • Correct answer
    A
    \(\Delta \mathrm{S}_{\text {system }}+\Delta \mathrm{S}_{\text {surroundings }} > 0\)
  • B
    \(\Delta \mathrm{S}_{\text {system }}-\Delta \mathrm{S}_{\text {surroundings }} > 0\)
  • C
    \(\Delta \mathrm{S}_{\text {system }} > 0\) only
  • D
    \(\Delta \mathrm{S}_{\text {surroundings }} > 0\) only

Solution

For a spontaneous process, \(\Delta \mathrm{S}_{\text {total }}\) is always positive

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

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