- #1
JSGhost
- 26
- 0
Homework Statement
A Carnot heat engine operates between temperatures Th and Tc.
(a) If Th = 515 K and Tc = 363 K, what is the efficiency of the engine?
0.30 Your answer is correct.
(b) What is the change in its efficiency for each degree of increase in Th above 515 K?
? K-1
(c) What is the change in its efficiency for each degree of change in Tc?
? K-1
(d) Does the answer to part (c) depend on Tc?
Yes or No?
Explain.
Homework Equations
e_c = 1 - T_c/T_h
The Attempt at a Solution
(a)
T_h = 515k
T_c = 363k
e_c = 1 - T_c/T_h = 1 -363k/515k = 0.2951456311 = 0.30
I'm don't know how to start part (b). Do I use the same equation or a different one?