11. when does raising the temperature of a gas increase its pressure?
when volume is increased and the number of particles is constant
when volume and the number of particles are constant
when volume is increased and the number of particles is increased

B. when volume and the number of particles are constant

Explanation:

According to Gay Lussac law,

For a given amount of gas at constant volume (V) and the number of particles are constant (n)

Pressure is directly proportional to the temperature of the gas.

It is given by the expression  

( at constant V and n)

(k is a constant )

When there is a change in the pressure or temperature

The expression is

Where                                

and are initial pressure and final pressure respectively

and are initial and final temperatures respectivley

Please Note:

Directly proportional means when one increases the other one too will increase that is when pressure increases temperature too will increases if volume and number of particles are constant.

16

explanation:

the marks go by 4s

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