Question

A closed vessel contains `8 g` of oxygen and ` 7 g` of nitrogen. The total pressure is 10 atm at a given temperature. If now oxygen is absorbed by introducting a suitable absorbent, the pressure of the remaining gas in atm will be
A. `10 xx 7//15atm`
B. `10 xx 8//15atm`
C. `10 xx 8//16 atm`
D. `10 xx 8//32 atm`

Answer 1

Correct Answer - C
`PV = (m)/(M)RT, P prop (m)/(M)`
`(P_(1))/(P_(2)) = (m_(1))/(M_(2)) xx (M_(2))/(M_(1)), (P_(1) + P_(1)^(1)) = 10, P_(1) = 5`