Question

how we can prove that air exands on heating

Answer 1

Explanation:

Activity I

Observation: When the bottle is placed in hot water, the balloon expands. When the bottle is placed in cold water, it contracts.

Inference: This happens because when the bottle is placed in hot water, the air in it becomes warm and expands due to which balloon also expands.

Answer 2

Answer:

. Observation: When the bottle is placed in hot water, the balloon expands. When the bottle is placed in cold water, it contracts.

. Inference: This happens because when the bottle is placed in hot water, the air in it becomes warm and expands due to which balloon also expands.

Explanation:

Hope this helps you .