Chemistry - Thermodynamics - II Question with Solution | TestHub
ChemistryThermodynamics - IICarnot Cycle/Cyclic processMedium2 minQB
ChemistryMediummultiple choice
A heat engine is operating in between 500 K and 400 K. If the engine absorbs 100 J heat per cycle, then which of the following is impossible amount of heat rejected by the engine per cycle?
Options:(select one or more)
Answer:
A, D
Solution:
The Carnot engine has the largest efficiency, 1 - 400/500 = 0.2, so the work is at most 20 J and the heat rejected is at least 100 - 20 = 80 J. Rejecting 75 J or 70 J would exceed the Carnot efficiency. Rejecting 85 J or 90 J is allowed. Ans: (a), (d).
Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Carnot Cycle/Cyclic process
⏱ 2mℹ️ Source: QB
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