A piston-cylinder assembly containing water, initially a liquid at 50 ?F, undergoes a process at a constant pressure of 20 lbf/in2
to a final state where the water is a vapor at
300 ?F. Kinetic and potential energy affects are negligible. Determine the work and heat
transfer, in Btu/lb, for each of three parts of the overall process
(a) From the initial liquid state to saturated liquid state,
(b) From saturated liquid to saturated vapor and
(c) From saturated vapor to final vapor state, all at 20 lbf/in2

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj