Question

how would you demonstrate to a friend that gases expand when heated​

Answer 1

Answer:

If you need to prove it in person, take a water bottle, like the plastic ones, squish it slightly to remove some air, put the lid on and hold it in front of a heater or hairdryer. The bottle will pop out the crinkles and indents due to the air inside warming up and expanding, pressurizing the bottle.

Explanation:

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