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  • Two Glass bulb A and B are connected by a very small Tube having a stopcock. bulb A has volume &nbs

Two Glass bulb A and B are connected by a very small Tube having a stopcock.
bulb A has volume 50 \mathrm{~cm}^3 and contained the gas, while bulb B was empty.
on opening the stop-cock. the pressure fall downs to 50%
The volume of bull B must be

Option: 1

50 \mathrm{~cm}^3


Option: 2

150 \mathrm{~cm}^3


Option: 3

100 \mathrm{~cm}^3


Option: 4

250 \mathrm{~cm}^3


Answers (1)

best_answer

\begin{array}{ll} P_1=1 \mathrm{~atm} & P_2=1 \mathrm{~atm} \times \frac{50}{100}=.50 \mathrm{~atm} \\ v_1=50 \mathrm{~cm}^3 & v_2=? \end{array}

At \ constant \ Temperature, \\ \begin{aligned} & \Rightarrow P_1 v_1=P_2 v_2 \\ & \Rightarrow \text { so } v_2=\frac{P_1 v_1}{P_2} \end{aligned}

\frac{1 \times 5000}{.5}=100 \mathrm{~cm}^3

Hence \ the \ volume \ of \ bulb \\ B=(100-50) \mathrm{cm}^3=50 \mathrm{~cm}^3

Posted by

manish painkra

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