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Question
A bell jar connected to a vacuum pump contains a partially inflated balloon. On creating vacuum inside the bell jar, balloon gets inflated. How does the pressure change inside balloon and bell jar.
A bell jar connected to a vacuum pump contains a partially inflated balloon. On creating vacuum inside the bell jar, balloon gets inflated. How does the pressure change inside balloon and bell jar.
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Solution
The correct options are
A inside bell jar pressure increase
D inside balloon pressure decreases
The pressure inside the balloon and in the bell jar should be equal in order to be in equilibrium.
When vacuum is created in the bell jar, the initial pressure in the bell jar will be lower than that in the balloon.
Therefore, the balloon expands so that the pressure in the bell jar increases while the pressure in the balloon decreases.
A inside bell jar pressure increase
D inside balloon pressure decreases
The pressure inside the balloon and in the bell jar should be equal in order to be in equilibrium.
When vacuum is created in the bell jar, the initial pressure in the bell jar will be lower than that in the balloon.
Therefore, the balloon expands so that the pressure in the bell jar increases while the pressure in the balloon decreases.
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