Question

Two glass bulbs A and B are connected by a very small tube having a stop cock. Bulb A has a volume of 100 `cm^(3)` and contained the gas, while bulb B was empty. On opening th stop cock. The pressure fell down to 40%. The volume of the bulb B must be:
A. `100 cm^(3)`
B. `200 cm^(3)`
C. `250 cm^(3)`
D. `400 cm^(3)`

Answer 1

Correct Answer - d
(d)
`(0.2Pxx(100+V))/(RT)=(100P)/(RT)`
`0.2(100+V)=100`
`V=400cm^(3)`