A carnot engine is made to work between 200 ,^oC and 0 ,^oC first… - Vidyadip

MCQ

A carnot engine is made to work between $200\,^oC$ and $0\,^oC$ first and then between $0\,^oC$ and $-200\,^oC$. The ratio of efficiencies $\left( {\frac{{{\eta _2}}}{{{\eta _1}}}} \right)$ of the engine in two cases is

A
$1:1.5$
B
$1:1$
C
$1:2$
✓
$1.73:1$

✓

Answer

Correct option: D.

$1.73:1$

d
$n = 1 - \frac{{{T_2}}}{{{T_1}}}$

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