Question

example of air expands on heating and contracts on cooling

Answer 1

when u put a water bottle in fridge the next morning u see it contracted. When u put a balloon on top of a flame it bursts because to air expands in it

Answer 2

The example related to the air expansion on heating and contracts on cooling is as follows:

Explanation:

• The air molecules expands on heating and contracts on cooling. The hot air molecules occupy more space than cold air molecules.
• The hot air molecules are more heavier than the cold air molecules.
• The warm air rises up and the cold air remains settled at the bottom.
• The warm air rises and it develops low pressure in the area, and the surrounding cooler air is relatively at the higher pressure.
• For example, two test tubes are taken and the open end is covered with the balloon. The test tubes are immersed in the hot and cold water respectively.
• The air inside the hot air balloon will expand and the balloon will swell and the balloon get sucked inside the balloon when exposed to the cold air.

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