Problem 3.052 a piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 600°f. the water undergoes two processes in series: a constant-pressure process followed by a constant volume process. at the end of the constant-volume process, the temperature is 300°f and the water is a two-phase liquid–vapor mixture with a quality of 40%. neglect kinetic and potential energy effects. determine the work and heat transfer for each process, all in btu.

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.

How will the system respond to a temperature increase?