A cylinder with a frictionless piston contains 0.5 kg of air with a volume of 0.3 m3
at
20 0C. The air is allowed to expand freely while being heated until its temperature
reaches 150 0C.
AWhat is the work done by the piston on the surroundings? (7)
BWhat is the internal energy of a kilomole of a monoatomic ideal gas at 0C (3)
CThe heat fusion of water is 80 / cal g . Calculate the energy needed to melt 20g of
ice. (3)
at
20 0C. The air is allowed to expand freely while being heated until its temperature
reaches 150 0C.
AWhat is the work done by the piston on the surroundings? (7)
BWhat is the internal energy of a kilomole of a monoatomic ideal gas at 0C (3)
CThe heat fusion of water is 80 / cal g . Calculate the energy needed to melt 20g of