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प्रश्न
Explain why air is used to inflate tyres.
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उत्तर
Air is used to inflate tyres because air can take the shape of any substance that it is pushed into, as there are large inter-molecular spaces present in air. Thus, when air is filled in a tyre, its particles distribute themselves evenly by diffusion inside the tyre, giving it a proper balance. Liquid can be filled in a tyre but it will exert more pressure than the atmospheric pressure and there will be chances of tyre getting burst. Besides, it will unnecessarily increase the weight of the vehicle.
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