An inventor claims to have invented four engines. Each of which operates between heatr reservoirs at 400 and 300 K.

(a) Which of these engines violate the second law of thermodynamic? (there may be)

(a) which of these engines violate the first law of thermodynamic? (there may be more than one correct answer)

(A) 1

(B) 2

(C) 3

(D) 4

(b) which of these engines violate the second law of thermodynamic? (There may be more than one correct answer!)

(A) 1

(B) 2

(C) 3

(D) 4

Simran Bhatia , 10 Years ago

Grade 11