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Two glass bulbs A and B at same temperat...

Two glass bulbs A and B at same temperature 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 is empty. On opening the stop-cock, the pressure fell down to `20%` . The volume of the bulb B is :

Text Solution

Verified by Experts

The correct Answer is:
150
`P_(1)=1` atm
`P_(2)= 1 "atm" xx (40)/(100)=0.40` atm
`V_(1)=100cm^(3)`
`V_(2)=?`
At constant temperature, `P_(1)V_(1)=P_(2)V_(2)`
So `V_(2)=(P_(1)V_(1))/(2) =(1"atm" xx 100cm^(3))/(0.40"atm")=250cm^(3)`
Hence, the volume of bulb `B=(250-100)cm^(3)=150cm^(3)`
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