Same amount of hydrogen (g) and (g) are mixed in a vessel at 25oC. The fraction of the total pressure exerted by hydrogen is

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Question

Same amount of hydrogen $H_2$(g) and $CH_4$(g) are mixed in a vessel at 25oC. The fraction of the total pressure exerted by hydrogen is

Prashant Kotian · Accepted Answer

Correct answer: B. Let amount of H2 = 1g amount of 4 CH 1g Number of moles of 2 1 H 0.5 2 Number of moles of 4 1 CH 0.0625 16 Mole fraction of H2 = 0.5 0.5 8 0.5 0.0625 0.5625 9 Partial pressure of 2 total 8 H P 9 x

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