Q24 / 200 · WBJEE 2013 · Chemistry

Mixing of two different ideal gases under isothermal reversible condition will lead to

  • A
    increase of Gibbs free energy of the system
  • B
    no change of entropy of the system
  • Correct answer
    C
    increase of entropy of the system
  • D
    increase of enthalpy of the system

Solution

On mixing of two different ideal gases under isothermal reversible conditions, $\Delta S_{\operatorname{mix}}$ is always positive $i . e .$, increasing.

Hence, the correct answer is option: 'C'.

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