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JEE Advanced 2014Paper 2
Exam
JEE Advanced
Year
2014
Paper
Paper 2
Subject
Chemistry
Chapter
Thermodynamics (C)

JEE Advanced 2014 · Paper 2 · Chemistry · Thermodynamics (C)

For the process H _ 2 O(l) → H _ 2 O(g) at T = 100 ^ o C and 1...

For the process H2O(l)→H2O(g){H}_{2}O\left(l\right) \to {H}_{2}O\left(g\right) at T=100oCT = {100}^{o}C and 1 atmosphere pressure, the correct choice is

Options

  1. A∆Ssystem>0and∆Ssurrounding>0∆ {S}_{system} > 0and ∆ {S}_{surrounding} > 0
  2. B∆Ssystem>0and∆Ssurrounding<0∆ {S}_{system} > 0and ∆ {S}_{surrounding} < 0
  3. C∆Ssystem<0and∆Ssurrounding>0∆ {S}_{system} < 0and ∆ {S}_{surrounding} > 0
  4. D∆Ssystem<0∆Ssurrounding<0∆ {S}_{system} < 0 ∆ {S}_{surrounding} < 0

Correct answer

B. ∆Ssystem>0and∆Ssurrounding<0∆ {S}_{system} > 0and ∆ {S}_{surrounding} < 0

Step-by-step solution

At 100oC{100}^{o}C and 1 atmosphere pressure H2O{H}_{2}O\left(l\right) ⇌ {H}_{2}O\left(g\right)isatequilibrium.Forequilibriumis at equilibrium. For equilibrium∆ {S}_{total} = 0and ∆ {S}_{system} + ∆ {S}_{surrounding} = 0<br><br >∴ ∆ {S}_{system} > 0and ∆ {S}_{surrounding} < 0
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