- #1

- 8

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**heat system efficiency??**

So lost..so what am i suppose to do??

'An engine absorbs 400J of heat and does 120J of work in each cycle'

a)what is its efficiency?

b)how much heat is rejected in each cycle?

- Thread starter jin
- Start date

- #1

- 8

- 0

So lost..so what am i suppose to do??

'An engine absorbs 400J of heat and does 120J of work in each cycle'

a)what is its efficiency?

b)how much heat is rejected in each cycle?

- #2

- 119

- 2

[tex]Efficiency = \frac{work done}{energy taken}[/tex]

spacetime

www.geocities.com/physics_all/index.html

- #3

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how do i calculate th heat rejected in the cycle?? the left over? 400-120??

- #4

- 119

- 2

correct!

spacetime

spacetime

- #5

- 8

- 0

thanks! can u help me with the others on another post?? please ><

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