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A and B are ideal gases. The molecular w...

A and B are ideal gases. The molecular weights of A and B are in the ratio of 1 : 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture?

A

P/5

B

P/2

C

P/2

D

3P/4

Text Solution

Verified by Experts

`p_B = X_Bcdot p = ((W)/(M_B))/((W)/(M_A) xx W/(M_B)) cdot p = (W/4)/(W/1 + w/4) cdot p`
` w/4 xx 4/(5w) cdot p = p//5`.
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