If a 250.0 mL sealed plastic bag starts out at a temperature of 19.0 °C and after sitting in the sun reaches a temperature of 60.0 °C, what will the new volume of the bag be? Assume the pressure inside the bag remains constant.

Answer 1

PV = kT
if P remains constant, then

V = kT (with a new k, of course)

so, the V2 = (T2/T1)*V1

recall that T is in °K, not °C

Answer 2

87