Question

$\mathbb{\huge{\purple{HEY\:MATE}}}$

HOW .... HOW .....$\mathbb{\huge{\purple{How}}}$
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Answer 1

1) increases linearly with increase in temperature

e.g. take water(g) in close cylinder heat it u will notice pressure in cylinder

same in case of pressure cooker but it has whistle so water can escape in form of steam