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Thermodynamics question

2004 · Q108
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Thermodynamics question

2004 · Q108

NEETChemistryThermodynamicsMCQ+4 / −1
Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is
  1. A
    ΔSsystem+ΔSsurroundings>0\Delta {S_{system}} + \Delta {S_{surroundings}} \gt 0ΔSsystem​+ΔSsurroundings​>0
  2. B
    ΔSsystem−ΔSsurroundings>0\Delta {S_{system}} - \Delta {S_{surroundings}} \gt 0ΔSsystem​−ΔSsurroundings​>0
  3. C
    ΔSsystem>0   \Delta {S_{system}} \gt 0\,\,\,ΔSsystem​>0only
  4. D
    ΔSsurroundings>0\Delta {S_{surroundings}} \gt 0ΔSsurroundings​>0 only
View written solutionFree

Correct answer: A

For the reaction to be spontaneous, the total entropy of system and universe increases i.e.,

ΔSsystem+ΔSsurroundings>0\Delta {S_{system}} + \Delta {S_{surroundings}} \gt 0ΔSsystem​+ΔSsurroundings​>0

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