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Why does the shape of a balloon change when air is filled in it?

Answer and explanation

Correct answer: Air particles collide with the balloon walls and exert outward pressure

Air is a gas whose particles move continuously and randomly. They collide with the inner walls of the balloon, producing outward pressure; the elastic rubber then stretches and the balloon changes shape. Option B is incorrect because filling a balloon with air does not turn its rubber into a solid; rubber is already a solid elastic material. Exam tip: gas pressure is caused by collisions of gas particles with the walls of their container.

Related tags

ChemistryNature Of MatterGas PressureParticle TheoryBalloonClass 11Some Basic Concepts Of ChemistryClass 11 Mcq

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