Thermodynamics Question 286

Question: A Carnot engine operating between temperatures T1 and T2 has efficiency16 . When T2 is lowered by 62 K its efficiency increases to 13 . Then T1 and T2 are, respectively

Options:

A) 372 K and 330 K

B) 330 K and 268 K

C) 310 K and 248 K

D) 372 K and 310 K

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Answer:

Correct Answer: D

Solution:

[d] η1=1T2T116=1T2T1T2T1=56 …(i)

η2=1T262T113=1T262T1 -(ii)

On solving Eqs. (i) and (ii) T1=372K and T2=310K



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