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?

Options

A. P/5
B. P/2
C. P/2.5
D. 3P/4

Answer

A