The volume of a gas is directly proportional to its temperature if the pressure and the number of particles is constant this statement is which law

Charle's law.

Explanation:

Charle's law:

According to Charle's law:

The volume of gas is directly proportional to the temperature when pressure and number of moles of gas are kept constant.

Mathematical expression:

V ∝ T

V = KT

V/T = K

when temperature is changed from T₁ to T₂ and volume is changed from V₁ to V₂.

V₁/T₁ = K and V₂/T₂ = K

V₁/T₁ = V₂/T₂

Their ratio remain constant for same amount of gas at same pressure.