V ∝ T. T, the temperature, is quoted in Kelvins.
Explanation:Given the proportionality, V1T1 = V2T2. V2 is unknown but V2 = T2×V1T1
Remember, that this assumes a constant pressure. Charles' law is also the reason that we can fly hot air balloons. The experiment has doubled the temperature, so how will volume evolve? Will it get bigger, smaller, remain the same?