Considering the statement and equation which of the following statement is correct?

The thermal efficiency of a Carnot engine is only depends upon the temperature of two reservoirs that are Thot and Tcold then the Carnot efficiency will be given by

ηCarnot = 1 - ( Tcold / Thot )

Considering the above statement and equation which of the following statement is correct?


a. Both the statement and equation are wrong
b. Both the statement and equation are correct
c. The statement is correct but equation needs correction
d. The equation is correct but statement needs correction

Correct Answer : b. Both the statement and equation are correct

Explanation :

The Carnot cycle is particularly important for the logical development of thermodynamics. Carnot engines can be operated with all sorts of working substances. All Carnot engines, irrespective of size, design, choice of working substances, etc., have same thermal efficiency if they operate between same two reservoirs.
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