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KVPY2016PhysicsThermodynamics

A gas at initial temperature T undergoes sudden expansion from volume V to 2 ~V . Then -

Options

  1. AThe process is adiabatic
  2. BThe process is isothermal
  3. CThe work done in this process is nRT n _ e (2) where n is the number of moles of the gas.
  4. DThe entropy in the process does not change

Correct answer

A. The process is adiabatic

Step-by-step solution

In sudden expansion gas do not get enough time for exchange of heat. Process is adiabatic.

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