Gaseous StateHard
Question
A mixture of hydrogen and oxygen at one bar pressure contains 20% by weight of hydrogen. Partial pressure of hydrogen will be
Options
A.0.2 bar
B.0.4 bar
C.0.6 bar
D.0.8 bar
Solution
(D) Weight of H2 = 20 g in 100 g mixture ; Weight of O2 = 80 g
∴ Moles of H2 =
= 10 ; ∴ Moles of O2 = 
∴ Total moles = 10 +
∴ PH2 = PT x mole fraction of H2 = 1 ×
= 0.8 bar
∴ Moles of H2 =
= 10 ; ∴ Moles of O2 = ∴ Total moles = 10 +
∴ PH2 = PT x mole fraction of H2 = 1 ×
= 0.8 barCreate a free account to view solution
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