engineering recuitment RVUNL JEn (RSEB) Mock Tests 2025 Thermodynamics Second Law of Thermodynamics and Entropy Statements of Second Law of Thermodynamics
Two identical finite bodies of constant heat capacity at temperatures T1 and T2 are available to do work in a heat engine. The final temperature Tf reached by the bodies on delivery of maximum work is
1
\({T_F} = \frac{{{T_1} + {T_2}}}{2}\)
2
\({T_f} = \sqrt {{T_1}{T_2}} \)
3
Tf = T1 = T2
4
\({T_f} = \sqrt {T_1^2 + T_2^2} \)
5
\(T_f = \sqrt {T_1 + T_2}\)