4 The work done when a gas is compressed in a cylinder is 338 J. At the same time,
it absorbs 142 J of heat from the surroundings. Compute the change in energy of
the system.

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.