ONLY B AND C

. 7. Compression of Steam by Different Paths This problem is similar to Recommended Quantitative Problem 1 except involves steam. Note that part c is a relatively-challenging, design-oriented problem that has a unique answer for the net amount of work but no single unique answer for the process to produce this amount of work! This problem contributes to satisfying ABET PEO 1 (SO 1) & PEO 2 (SO 2). Consider a piston-cylinder assembly containing 10.0 kg of water initially occupying a volume of 1.00 m at a pressure of 20.0 bar. Under these conditions water does not behave as an ideal gas! a. The assembly is compressed reversibly to a final pressure of 100 bar in a process for which the pressure-specific volume relationship is Po% = constant . Determine the final specific volume (in m3/kg) and final temperature (in C). Sketch this process on a P- diagram, labeling the area that represents the work. Determine both the work done and heat transferred (both in kJ). b. Alternatively, the water is compressed to the same final state as for part a by dropping suddenly a large block on the piston; when the block lands on the piston, the pressure increases instantaneously to the final pressure of 100 bar. Sketch this alternative process on its own P-diagram, labeling the area that represents the work. Determine both the work done and heat transferred (both in kJ). c. Design qualitatively a possible process by which the water could be transformed from the initial state to the final state without any net (i.e., total) amount of heat exchange with the surroundings. Keep in mind that simply insulating the assembly will not result in a process transforming the assembly to the final state specified above; you need to describe how external pressure should be varied to achieve net adiabatic operation. Determine quantitatively the net (i.e., total) amount of work (in kJ) associated with your process. >