Question

For a heat engine having efficiency 50percent.,what is ratio of temperatures t1&t2

Answer 1

Explanation:

Efficiency of heat engine η=

input

output

=

T

1

T

1

−T

2

-------(a)

Now new efficiency of heat engine when sin and source temperature is doubledη

new

=

2T

1

2T

1

−2T

2

η

new

=2

2T

1

T

1

−T

2

=η from a