General Science - Physics MCQs


Q.  Which of the following is the efficiency of a Carnot engine(a = Temperature of source, b=Temperature of sink)?

a. 1 – b/a
b. 1 – a/b
c. 1 + b/a
d. 1 + a/b


ANSWER: See Answer
 
Carnot engine is a reversible engine operating between two temperatures T1 (source) and T2 (sink). The Carnot cycle consists of two isothermal processes connected by two adiabatic processes. The efficiency of a Carnot engine is given as: 1 – T2/T1
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