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MHT CET202312 May 2023Evening ShiftChemistryThermodynamics (C)Actual

Equal masses in grams of H ₂, ~N ₂, Cl ₂ , and O ₂ , are enclosed in cylinders separately. If these gases expand isothermally and reversibly by 10 dm ^3 at 300 ~K , the work done by gas is maximum for

Options

  1. AH ₂
  2. BN ₂
  3. CCl ₂
  4. DO ₂

Correct answer

A. H ₂

Step-by-step solution

W _ =-2.303 nRT ₁₀ V ₂ ~V ₁ Hence, W _ 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, H ₂ has the lowest molecular mass.

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