Charles law gives the relationship between volume and temperature of gas. It states that at constant pressure volume is directly proportional to temperature Therefore V/ T = k Where V - volume T - temperature in kelvin and k - constant V1/T1 = V2/T2 Parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation Substituting the values in the equation 267 L/ 480 K = V / 750 K V = 417 L Final volume is 417 L