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Question: Answered & Verified by Expert
At the same conditions of pressure, volume and temperature, work done is maximum for which gas if all gases have equal masses?
ChemistryThermodynamics (C)MHT CETMHT CET 2009
Options:
  • A $\mathrm{NH}_{3}$
  • B $\mathrm{N}_{2}$
  • C $\mathrm{Cl}_{2}$
  • D $\mathrm{H}_{2} \mathrm{~S}$
Solution:
2306 Upvotes Verified Answer
The correct answer is: $\mathrm{NH}_{3}$
When $p, V$ and $T$ are same and mass is also same, work done depends only upon molecular mass. $W \propto \frac{1}{M}($ where, $M=$ molecular mass $)$
Among the given gases, $\mathrm{NH}_{3}$ has lowest molecular mass, so work done is maximum for it.

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