Question

Why the size of a bolloon in hot water is increased computer to a baloon in cold water?

Answer 1

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→→ When a balloon is exposed to heat or cold, the gas inside the rubber will either expand or contract. The change in the balloon’s size becomes a visual gauge of the change in air pressure. Adding hot and cold water to an experiment also enables us to explore the properties of liquids.

Based on experiment ( Example)

→→ When the air inside the plastic bottle is warmed, it expands and needs more space, therefore it stretches out the balloon. When the bottle is transferred to the icy cold water, the air is cooled; it contracts and needs less space, so the balloon deflates. The mass of air remains constant inside the bottle, so this shows that the warm air requires more space and is less dense than cool air.

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