For the process H 2 O   l → H 2 O g   at T = 100 o C   and 1 atmosphere pressure, the…

For the process H2O lH2Og  at T=100oC  and 1 atmosphere pressure, the correct choice is
  1. Ssystem>0 and Ssurrounding>0
  2. Ssystem>0 and Ssurrounding<0
  3. Ssystem<0 and Ssurrounding>0
  4. Ssystem<0 Ssurrounding<0

Solution

At 100oC and 1 atmosphere pressure H2OlH2Og is at equilibrium. For equilibrium Stotal=0 and Ssystem+Ssurrounding=0
    Ssystem>0 and Ssurrounding<0

Asked in: JEE Advanced 2014 (Paper 2)

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