A 1 kg block of aluminum is heated at atmospheric pressure such that its temperature increases from 22 0C to 40 0C. What is the change in the internal energy (in J) of the block of aluminum? The specic heat of aluminum is 9*102J/(kg K). Enter an integer. Gas in a container is at a pressure of 2.5 atm and a volume of 7.5 m3. What is the work (In kJ) done by the gas if it expands at constant pressure to a volume 15.3 m3? Use 1 atm = 101 kPa. Enter an integer