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MHT CET20249 May 2024Evening ShiftChemistryThermodynamics (C)Actual

10 g each of NH ₃, ~N ₂, Cl ₂ and H ₂ ~S are expanded isothermally and reversibly at same temperature. Identify gas that performs maximum work.

Options

  1. AN ₂
  2. BCl ₂
  3. CH ₂ ~S
  4. DNH ₃

Correct answer

D. NH ₃

Step-by-step solution

W_ =-2.303 n R T ₁₀ V₂ V₁ Hence, W_ max n (Given: R , T , V ₂, ~V ₁= Constant) W _ 1 M W (Given: equal mass) Hence, lower the molecular mass, greater is the work done. Among the given, NH ₃ has the lowest molecular mass which performs maximum work.

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