Bissoy.com
Doctors Medicines MCQs Q&A

Carnot’s theorem states that all the heat engines between two reservoirs are less efficient than the Carnot heat engine.

Carnot’s theorem states that all the heat engines between two reservoirs are less efficient than the Carnot heat engine. Correct Answer True

For a given heat reservoirs no engine can have a thermal efficiency higher than that of a Carnot’s engine. Every Carnot heat engine is equally efficient.

Related Questions

Consider the following statements: 1. The entropy of a pure crystalline substance at absolute zero temperature is zero. 2. the efficiency of a reversible heat engine is independent of the nature of the working substance and depends only on the temperature of the reservoirs between which it operates.  3. Carnot’s theorem states that of all heat engines operating between a given constant temperature source and a given constant temperature sink, none has a higher efficiency than a reversible engine Which of the above statements are correct?
Consider the following statements regarding C.I. engine: 1. C.I. engines are more bulky than S.I. engines 2. C.I. engines are more efficient than S.I. engines 3. Lighter flywheels are required in C.I. engines Which of the above statements are correct?
A Carnot heat engine receives heat at 750 K and rejects the waste heat to the environment at 300 K. The net work output of the heat engine is used to drive a Carnot refrigerator, whose COP is 6.14. If the heat removal rate from the refrigerated space is 6.6 kW, determine the rate of heat supply to the heat engine?
From the given table, what is the percentage of students scoring 40 or more, but less than 70. Scores Less than 20 Less than 30 Less than 40 Less than 50 Less than 60 Less than 70 Less than 80 No. of Students 12 19 22 31 38 46 50
Ramesh is 70% more efficient than Rakesh, but 20% less efficient than Vijay. If Rakesh is 40% more efficient than Suresh, and Vijay is 15% less efficient than Dinesh, then Dinesh is what percent more efficient than Suresh?
The thermal efficiency of a reversible heat engine operating between two given thermal reservoirs is 0.4. The device is used either as a refrigerator or as a heat pump between the same reservoirs. Then the coefficient of performance as a refrigerator (COP)R and the co-efficient of performance as a heat pump (COP)HP are
From the following table, how many patients were in the age group 40 – 60? Age (years) Less than 10 Less than 20 Less than 30 Less than 40 Less than 50 Less than 60 Less than 70 No. of patients 11 15 22 29 35 45 50
একটি কর্নো ইঞ্জিন 500 K এবং 205 K তাপমাত্রার দুইটি আধারের মাধ্যমে পরিচালিত হয়। প্রত্যেক চক্রে ইঞ্জিন যদি উৎস থেকে 1 kcal তাপ গ্রহণ করে তাহলে প্রত্যেক চক্রে তাপ গ্রাহকে তাপ বর্জন করার পরিমাণ কত? ( A Carnot engine is operated between two reservoirs at temperatures of 500 K and 250K. If the engine receives 1 kcal of heat from the source in each cycle, the amount of heat rejected to the sink in each cycle is-)
একটি কার্নো ইঞ্জিন 500K এবং 250K তাপমাত্রার দুইটি আধারের মাধ্যমে পরিচালিত হয়। প্রত্যেক চক্রে ইঞ্জিন যদি উৎস থেকে । kcal তাপ গ্রহণ করে তাহলে প্রত্যেক চক্রে তাপ গ্রাহকে তাপ বর্জন করার পরিমাণ কত? ( A Carnot engine is operated between two reservoirs at temperatures of 500 K and 250 K. If the engine receives 1 kcal of heat from the source in cach cycle, the amount of heat rejected to the sink in each cycle is --)
The question below is followed by two statements I and II. You have to determine whether the data given is sufficient for answering the question. You should use the data and your knowledge of mathematics to choose the best possible answer. Which among the five friends P, Q, R, S, T is most efficient? I. S is better than T, T takes less days than R, P is more efficient than S II. P takes less time than S, S is more efficient than R, R takes 20 days and T takes 25 days