NEET Solved Paper 2018 Question 4
Question: The efficiency of an ideal heat engine working between the freezing point and boiling point of water, is [NEET - 2018]
Options:
A) 6.25%
B) 20%
C) 26.8%
D) 12.5%
Show Answer
Answer:
Correct Answer: C
Solution:
Efficiency of ideal heat engine, $ \eta \text{=}( \text{1-}\frac{{T_2}}{{T_1}} ) $
$ {T_2} $ : Sink temperature $ {T_1} $ : Source temperature % $ \eta \text{=}( \text{1-}\frac{{T_2}}{{T_1}} )\times\text{ 100} $ $ =( 1-\frac{273}{373} )\times 100 $ $ =( \frac{100}{373} )\times 100=26.8$%
