The partial pressure of hydrogen in a flask containing 2 g of `H_(2)` and 32 g of `SO_(2)` is

Options

A. `1//16` of total pressure
B. `1//2` of total pressure
C. `2//3` of total pressure
D. `1//8` of total pressure

Answer

C

Explanation

Moles of `H_(2) = (2)/(2) = 1`, moles of `SO_(2) = (32)/(64) = 0.5`,
Total moles `= 1 + 0.5 = 1.5`
Let total pressure be P
`:.` Pressure of 1 moles = P
`:.` Pressure of 1 mol `= (P)/(1.5) = (P)/(3//2) = (2P)/(3)`