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Application 1 Heat engine.docx
Application 1
Engines. Problems.
1st level.
1. What is the efficiency of an ideal heat engine, if the heater temperature is 5000 C, and the refrigerator temperature is 200 C?
2. Find the efficiency of the heat engine, if the gas receives 200 joules of heat from the heater and gives the refrigerator 135 joules.
3. What is the efficiency of a heat engine, if the heater temperature is 800 ° C and the temperature of the refrigerator is 25 ° C?
2nd level.
The heater temperature is 1500 C, and the cooler temperature is 200 C. The heater received 105 kJ of heat. Determine the work done by the machine, if you consider it perfect.
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