Efficiency of Carnot engine is 100 % if - Vidyadip

MCQ

Efficiency of Carnot engine is $100\%$ if

A
${T_2} = 273\,\,K$
✓
${T_2} = 0\,\,K$
C
${T_1} = 273\,\,K$
D
${T_1} = 0\,\,K$

✓

Answer

Correct option: B.

${T_2} = 0\,\,K$

b
(b) $\eta = 1 - \frac{{{T_2}}}{{{T_1}}}$ for $100\%$ efficiency $\eta = 1$ which gives $T_2 = 0\, K.$

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