The molar composition of a gas is 10% H₂, 10% O₂, 30% CO₂ and balance H₂

Question

The molar composition of a gas is 10% H₂, 10% O₂, 30% CO₂ and balance H₂O. If 50% H₂O condenses, the final mole percent of H₂ in the gas on a dry basis will be
be

Options:

A . 10%

B . 5%

C . 18.18%

D . 20%

Answer: Option D

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