The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is: - Physics MCQ NEET (UG) 2018 2026 | ExamTest.live | ExamTest.live

Home Tests Search Rank Profile

mediumMCQNEET (UG) 20182026Physics

1 mark

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is:

A $6.25%$
B $20%$
C $26.8%$
D $12.5%$

Solution & Step-by-step Explanation

1. Freezing point of water (T_{s ink}): 0^{\circ} C = 273.15 K 2. Boiling point of water (T_{so u rce}): 10 0^{\circ} C = 373.15 K 3. Efficiency (η) of a Carnot engine is: η = 1 - \frac{T _{s ink}}{T _{so u rce}} η = 1 - \frac{273}{373} = \frac{373 - 273}{373} = \frac{100}{373} η \approx 0.268 In percentage: η \approx 26.8% .

Practice this question

Try it yourself before checking the explanation above.

The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is:

A

6.25%

B

20%

C

26.8%

D

12.5%

Share This Question

Thermodynamics Carnot Engine Efficiency

Related Questions

Which one of the following statements is true?

Which of the following statements is not correct?

Which one of the following statements is correct?

The product formed by the reaction of an aldehyde with a primary amine is:

Which part of the tobacco plant is infected by Meloidogyne incognita?

The term ecosystem was coined by:

Ready for a Full Test?

Practice with timed mock tests and track your performance across Physics.

Browse Tests Leaderboard

Discussion