Question

39.
An engine is supposed to operate between two
reservoirs at temperature 727°C and 227°C. The
maximum possible efficiency of such an engine is
(a) 1/2
(b) 1/4
(c) 3/4
(d) 1​

Answer 1

Answer:

a) 1/2

Explanation:

Use the formula, n= {1-(T2/T1)}x100%

Here, T2= 727+273=1000K

and T1=227+273=500K