I need help with 14

namics. engines 23-24 tejeda (RossGPHY1_1) 2 volume of 15.4 L; and 1) heating at constant volume to its original temperature of 314 K Find its efficiency. Assume that the heat capacity is 21 J/K and the univer- sal gas constant is 0.08206 L . atm/mol/K - 8.314 J/mol/K. Give your answer in the form of a percentage. 015 (part 1 of 3) 10.0 points An engine absorbs 2212 J from a hot reservoir and expels 586 J to a cold reservoir in each cycle. What is the engine's efficiency? Answer with an efficiency in decimal form. ~ DIUGLGUCG PGIMGCU TUGLSbGMTIC GLEE 016 (part 2 of 3) 10.0 points How much work is done in each cycle? Answer in units of .J. 017 (part 3 of 3) 10.0 points What is the mechanical power output of the 290iv192 VillionA engine if each cycle lasts for 0.38 57 Answer in units of kW 018 10.0 points IUqICSfou A steam engine (assume a Carnot engine ) has an efficiency of 79.16. If the waste heat has a temperature of 50.10, what is the temperature of the boiler? Answer in units of C. 019 (part 1 of 2) 10.0 points A Carnot engine has a power output of 68 k W. The engine operates between two reservoirs at 28'C and 355. C. How much thermal energy is absorbed each hour? Answer in units of .J. 014 10.0 points 020 (part 2 of 2) 10.0 points How much thermal energy is lost per hour? An engine using 1 mol of an ideal gas ini- Answer in units of J. tially at 15.4 L and 314 K performs a cycle consisting of four steps: 021 10.0 points 1) an isothermal expansion at 314 K from 15.4 L to 35 L; The interior of a refrigerator has a surface 2) cooling at constant volume to 162 K ; area of 2.6 m . It is insulated by a 2.2 cm 3) an isothermal compression to its original thick material that has a thermal conductive ity of 0.0127 J/m . s . C. The ra