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JEE Main2013ChemistryThermodynamics (C)Actual

Which of the following statements/relationships is not correct in thermodynamic changes ?

Options

  1. AU =0 (isothermal reversible expansion of a gas)
  2. Bw =- nRT V ₂ ~V ₁ (isothermal reversible expansion of an ideal gas)
  3. Cw = nRT V ₂ ~V ₁ (isothermal reversible expansion of an ideal gas)
  4. DFor a system of constant volume heat involved directly changes to internal energy.

Correct answer

C. w = nRT V ₂ ~V ₁ (isothermal reversible expansion of an ideal gas)

Step-by-step solution

For isothermal reversible expansion. w=-n R T V₂ V₁

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