745PhysicsMedium
The efficiency of the Carnot engine working between 150°C and 50°C is__________?
A100%
B50%
C29.4%
D23.6%
Correct answer
D. 23.6%
Explanation
Explain: formula n% = (1- T2/T1) ×100% T1= 273+150= 423K T2:273+50= 323K n% = (1- 323/423)×100% n% = 0.236×100% = 23.6% Correct