What is the maximum possible coefficient of performance of a heat pump that brings energy from outdoors at "3.00°C into a 22.0°C house? Note that the work done to run the heat pump is also available to warm up the house.
Answer to relevant QuestionsAn ideal refrigerator or ideal heat pump is equivalent to a Carnot engine running in reverse. That is, energy Q c is taken in from a cold reservoir and energy Q h is rejected to a hot reservoir. (a) Show that the work that ...Two Carnot engines have the same efficiency. One engine runs in reverse as a heat pump, and the other runs in reverse as a refrigerator. The coefficient of performance of the heat pump is 1.50 times the coefficient of ...Calculate the change in entropy of 250 g of water heated slowly from 20.0°C to 80.0°C. (Suggestion: Note that dQ = mc dT)A 1.00-mol sample of H2 gas is contained in the left-hand side of the container shown in Figure P22.45, which has equal volumes left and right. The right-hand side is evacuated. When the valve is opened, the gas streams ...How much work is required, using an ideal Carnot refrigerator, to change 0.500 kg of tap water at 10.0°C into ice at - 20.0°C? Assume the temperature of the freezer compartment is held at -20.0°C and the refrigerator ...
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