JEE Exam  >  JEE Questions  >  A Carnot engine has efficiency of 50%. If the... Start Learning for Free
A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:
  • a)
    166.7 K
  • b)
    255.1 K
  • c)
    266.7 K
  • d)
    367.7 K
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A Carnot engine has efficiency of 50%. If the temperature of sink is r...
Free Test
Community Answer
A Carnot engine has efficiency of 50%. If the temperature of sink is r...
% and the temperature of source remains constant, what will be the new efficiency of the Carnot engine?

The Carnot engine's efficiency is given by the formula:

Efficiency = 1 - (T_sink / T_source)

Let's assume the initial temperature of the sink is T1 and the temperature of the source is T2. Therefore, the initial efficiency is:

Initial Efficiency = 1 - (T1 / T2) = 0.5

If the temperature of the sink is reduced by 40%, the new temperature of the sink will be (1 - 0.4) * T1 = 0.6 * T1.

Therefore, the new efficiency is:

New Efficiency = 1 - (0.6 * T1) / T2

Since we know that the initial efficiency is 0.5, we can set up the equation:

0.5 = 1 - (0.6 * T1) / T2

Simplifying the equation:

0.6 * T1 = 0.5 * T2

Dividing both sides by T1 and rearranging the equation:

0.6 = 0.5 * T2 / T1

0.6 / 0.5 = T2 / T1

1.2 = T2 / T1

Therefore, the new efficiency of the Carnot engine will be 1 - 1.2 = 0.2 or 20%.
Explore Courses for JEE exam
A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer?
Question Description
A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A Carnot engine has efficiency of 50%. If the temperature of sink is reduced by 40°C, its efficiency increases by 30%. The temperature of the source will be:a)166.7 Kb)255.1 Kc)266.7 Kd)367.7 KCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev