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: Option A
Solution (By Examveda Team)
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 $$\aleph = 1 - \frac{{{T_1}}}{{{T_2}}}$$
This Question Belongs to Chemical Engineering >> Chemical Engineering Thermodynamics
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