Chapter 4 Question PV12 - constant process. The device executing a Air is expanded from 1 MPs, 327 C to 200 kPa in s closed piston-cylinder work produced during this process is A) 2026 kJkg B) 263 4 kkg C) 361.7 kJkg D) 422 8 kkg Question 2 Ar is compressed nan nsulated pstneyinder device. Given 1005 kwkgA and C.0718 kJkg-k, and treating the process as internally reversible, the amount of work required to compress this air from 100 kPa, 27'C to 2 MPa, 706'c is Question 3 ciosed system undergoes the series of quasi-equilibrium processes shown here. Determine the work done 500 200 01 0507 im2 A) 40 kJ B) 140 kJ C) 240 kJ D) 340 k Question4 A piston-cylinder device contains 1 kg of R-134a at 0 8 MPa and 70C Heat is transferred to the refrigerant at constant pressure until the temperature rises to 100C. The amount of heat transferred is A) 27.3 kJ 8) 304KJ C) 24.0 kJ D) 21.6kJ Question 5 A piston-cylinder device contains 1 kg hydrogen gas. Heat is transferred to the hydrogen until ts temperature increases by 10C What is the boundary work done during this process? A) 143 kJ B) 102kJ C) 80 kJ D) 41 kJ 14 ES204 Test Ch1-4 SP18