A steam engine operates between 100 oC and 20 oC. What is the Carnot efficiency of the ideal engine that operates between these temperatures?
Answer to relevant QuestionsWhile doing 500 J of work, an ideal gas expands adiabatically to 1.5 times its initial volume. (a) The temperature of the gas (1) increases, (2) remains the same, (3) decreases. Why? (b) What is the change in the internal ...A Carnot engine takes 2.7 x 104J of heat per cycle from a high-temperature reservoir at 320 oC and exhausts some of it to a low-temperature reservoir at 120 oC. How much net work is done by the engine per cycle? In each cycle, a Carnot engine takes 800 J of heat from a high-temperature reservoir and discharges 600 J to a low-temperature reservoir. What is the ratio of the temperature of the high-temperature reservoir to that of the ...An ideal heat pump is equivalent to a Carnot engine running in reverse. (a) Show that the Carnot COP of the heat pump is COPC = 1/εC where εC is the Carnot efficiency of the heat engine. (b) If a Carnot engine has an ...An ice machine is to convert 10oC water to 0oC ice. If the machine has a COP of 2.0 and consumes electrical power at a rate of 1.0 kW, how much ice can it make in 1.0 h?
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