Two containers, X and Y, both contain nitrogen gas at a temperature of 30° C and a pressure of 1 atm. The initial volume of each of the containers is V30 = 0.5 liters. The only difference between the two containers is that while container X has a piston that is sealed and cannot move, the gas in container Y is allowed to expand against the surrounding atmosphere. QX is the amount of heat required to raise the temperature of the gas in container X by 10° C, and QY is the amount of heat required to raise the temperature of the gas in container Y by 10° C. What is the difference between QX and QY? Use 0°C = 273.15 K