4 kg moles of an ideal gas expands in vacuum spontaneousl... — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is_________________?

Correct answer: C

Explanation

Expansion in a vacuum means the external pressure is zero. Therefore, the work done (W = -P_ext * V) is zero.

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