: A refrigerator uses 1000W to keep your food cold. How much power is saved if a different refrigerator with a coefficient of performance of 3 is used? (Assume that Q_L is 1000 W) View
: If we wanted to increase the efficiency in the Carnot cycle in the previous question we could… View
: What is the efficiency of a Carnot cycle with the temperature at state 1 of 300 °C and a temperature at state 2 and 3 of 33 °C and the temperature at state 4 of 275°C. View
: Given the coefficient of performance of a heat pump is 1.25 and the heat released into the hot reservoir is 92 W, what is the heat required from the cold reservoir and what is the work required for this output? View
: Consider a refrigerator. What is the coefficient of performance if the heat released is 6.75 Watts and the heat added is 3.75 Watts? View
: You are designing an engine with a hot reservoir of 555°C and a cold reservoir of 22°C. What is the maximum efficiency of the engine? View
: Consider an engine that operates at a low temperature of 33°C and a higher temperature of 367 °C. Would it be possible to have an efficiency of 65%? View
: Consider a heat engine with the heat input of 900 kJ at a temperature of 500 °C. The heat engines rejects heat to the the surroundings at a temperature of 25 °C, and produces 375 kJ of work. What is the Carnot efficiency? View
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