Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T₂) is

A) $$\frac{{{{\text{T}}_2} - {{\text{T}}_1}}}{{{{\text{T}}_2}}}$$ B) $$\frac{{{{\text{T}}_2} - {{\text{T}}_1}}}{{{{\text{T}}_1}}}$$ C) $$\frac{{{{\text{T}}_1} - {{\text{T}}_2}}}{{{{\text{T}}_2}}}$$ D) $$\frac{{{{\text{T}}_1} - {{\text{T}}_2}}}{{{{\text{T}}_1}}}$$

Answer & Solution

Correct Answer: Option A

Here the question should be read carefully given $$\left( {{T_1} < {T_2}} \right)$$
So, the hot reservoir is $${{T_2}}$$ and cold reservoir is $${{T_1}}$$ hence the efficiency will be $$\aleph = 1 - \frac{{{T_1}}}{{{T_2}}}$$

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Efficiency of a Carnot engine working between temperatures T1 and T2...

Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T2) is

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Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T₂) is