Q8 / 90 · KVPY 2011 (SB/SX) · Chemistry

For a process to occur spontaneously

  • A
    only the entropy of the system must increase
  • B
    only the entropy of the suroundings must increase
  • C
    either the entropy of the system or that of the surroundings must increase
  • Correct answer
    D
    the total entropy of the system and the surroundings must increase

Solution

$(\Delta \mathrm{S})_{\text {system }}+(\Delta \mathrm{S})_{\text {surrounding }}>0$ (irreversible process)

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

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