If an inflated balloon is punctured, air escapes from the balloon. What inference can we deduce from this?

Air inside the balloon is cold.

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Pressure in balloon is greater than atmospheric pressure.

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The molecules of air inside the balloon are stationary.

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Air inside the balloon is hot.

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Solution

The correct option is B Pressure in balloon is greater than atmospheric pressure.
The air inside an inflated balloon exerts pressure on the balloon. This pressure inside the balloon is balancing the sum of atmospheric pressure and the elasticity of the balloon, which wants it to go back to its original state. Now, when the balloon is punctured, elasiticity is lost and the pressure in balloon turns out to be greater than atmospheric pressure. This pressure difference causes the air inside the balloon to escape out.

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