The temperature of the cold reservoir of the engine is 305 K. It has an efficiency of 0.23 and absorbs 367 J of heat per cycle. (a) How much work (in J) does it perform per cycle? J (b) How much heat does it reject (in J) per cycle? J
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Q: from a hot reservoir at
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A: Fhjknncc
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A: temperature of cold reservoir, Tc =78.0°C = 351 K temperature of hot reservoir, TH = 345°C = 618 K…
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A: The following question can be solved as follows
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A: Efficiency of the engine ηh=1-QcQh55%ηcarnot=1-QcQh0.551-TlowThigh=1-QcQhTlowThigh=1-10.551-QcQh
Q: An engine absorbs 1.71 kJ from a hot reservoir at 277°C and expels 1.22 kJ to a cold reservoir at…
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- A heat engine running backward is called a refrigerator if its purpose is to extract heat from a cold reservoir. The same engine running backward is called a heat pump if its purpose is to exhaust warm air into the hot reservoir. Heat pumps are widely used for home heating. You can think of a heat pump as a refrigerator that is cooling the already cold outdoors and, with its exhaust heat QH, warming the indoors. Perhaps this seems a little silly, but consider the following. Electricity can be directly used to heat a home by passing an electric current through a heating coil. This is a direct, 100% conversion of work to heat. That is, 19.0 kW of electric power (generated by doing work at the rate 19.0 kJ/s at the power plant) produces heat energy inside the home at a rate of 19.0 kJ/s. Suppose that the neighbor's home has a heat pump with a coefficient of performance of 3.00, a realistic value. NOTE: With a refrigerator, "what you get" is heat removed. But with a heat pump, "what you…A particular heat engine has a mechanical power output of 5.20 kW and an efficiency of 26.0%. The engine expels 7.40 x 103 J of exhaust energy in each cycle. (a) Find the energy taken in during each cycle. kJ (b) Find the time interval for each cycle. SIn one cycle a heat engine absorbs 520 J from a high-temperature reservoir and expels 310 J to a low-temperature reservoir. If the efficiency of this engine is 57% of the efficiency of a Carnot engine, what is the ratio of the low temperature to the high temperature in the Carnot engine? Tlow Thigh =
- A Carnot engine operates between a hot reservoir at 362.0 K and a cold reservoir at 312.0 K. If it absorbs 525.0 J of heat per cycle at the hot reservoir, how much work per cycle does it deliver? If the same engine, working in reverse, functions as a refrigerator between the same two reservoirs, how much work per cycle must be supplied to remove 985.0 J of heat from the cold reservoir? Needs complete solution with @/100 % accuracy.In a Carnot cycle if the heat added is 570 J and the heat rejected is 180 J then what is the work net? O 570 J O 3.17 J O 390 JQUESTION 4 In a single cycle, heat engine extracts 8.00 kcal of heat from a hot reservoir and exhausts 5.00 kcal of heat int a cold reservoir. What is the efficiency of this engine? а. 67.5% b. 77.5% C. 57.5% d. 47.5% е. 37.5%