Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the__________________?
Correct answer: C. Either A. or B
- A. Cold reservoir approaches zero
- B. Hot reservoir approaches infinity
- C. Either A. or B
- D. Neither A. nor B
Explanation
Carnot efficiency is η = 1 − Tc/Th, so it approaches unity if the cold-reservoir temperature approaches absolute zero or the hot-reservoir temperature approaches infinity. Therefore, either condition can theoretically give 100% efficiency.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Engineering Thermodynamics
598 free Chemical Engineering Thermodynamics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
"The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements." This is the statement of___________________?
The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?
Clausius Clapeyron equation applies to the _____________ process?
_________________ chart is a graph related to Antoine equation ?
If a solution of eutectic composition is cooled, _______________ reaching the eutectic temperature ?