Question

A carnots engine operating at temperatures 400 K and 300 K absorbs 100 calories.what is it's efficiency

​

Answer 1

Answer:

.

Explanation:

Answer 2

Answer:

Work doneW=Q

h

−Q

c

=100−80=20cal

Efficiency, η=

Q

h

W

=1−

T

h

T

c

100

20

=1−

400

T

c

T

c

=0.8(400)=320K