Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant

pressure conditions?

Boyle's law

Charles's law

Dalton's law

Gay-Lussac's law

The answer is Charles law

Charles's law

Explanation:

Charles' law gives a relationship between volume and absolute temperature at constant pressure. It's thus, states that the volume of a fixed mass of gas is directly proportional to its absolute temperature provided the pressure remains constant. Mathematically,

V & T

V = KT

K = V / T

V1/T1 = V2/T2

Where

V1 is initial volume.

V2 is the final volume.

T1 is the initial temperature in Kelvin

T2 is the final temperature in Kelvin.