A carnot engine works between `200^(@)C and 0^(@)C` first and then between `0^(@)C and -200^(@)C`. Compare the values of efficiencies in the two cases.

Explanation

To compare the efficiencies of a Carnot engine working between two different temperature ranges, we will follow these steps:

### Step 1: Understand the Efficiency Formula
The efficiency (η) of a Carnot engine is given by the formula:
\[ η = 1 - \frac{T_C}{T_H} \]
where \(T_C\) is the absolute temperature of the cold reservoir and \(T_H\) is the absolute temperature of the hot reservoir. Temperatures must be in Kelvin.
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