The total pressure of a mixture of non-reacting gases X ( 0 . 6   g ) and Y ( 0 . 45   g ) in a…

The total pressure of a mixture of non-reacting gases X(0.6 g) and Y(0.45 g) in a vessel is 740 mm of Hg. The partial pressure of the gas X is mm of Hg. (Nearest Integer)
(Given : molar mass X=20 and Y=45 g mol-1 )

Solution

Total pressure (PTotal) = 740 mm of Hg

Number of moles of gas X = 0.620

Number of moles of gas Y = 0.4545

Total number of moles = 0.03 + 0.01 = 0.04 mole

The partial pressure of the gas X = Mole fraction × Total pressure 

X = 0.030.04 × 740 = 555

 

Asked in: JEE Main 2023 (31 Jan Shift 1)

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