A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficiency of the engine

Question

anonymous · Answer

do you have options

anonymous · Answer

65.0%
60.8%
73.6%
58.6%
69.1%

anonymous · Answer

@Hayleymeyer

hayleymeyer · Answer

I thought 47%

johnweldon1993 · Answer

Are we to assume a Carnot heat engine?

johnweldon1993 · Answer

If so it would be

$$\large efficiency = 1 - \frac{T_c}{T_h}$$

anonymous · Answer

sorry i am done with this question i passed the test tho :D

johnweldon1993 · Answer

Great job! This question seemed off anyways...you are supposed to use Kelvin which would lead to the answer @Hayleymeyer gave of 47% however here the answer that they wanted was from using Celsius...

Oh well, anyways...Good job! :D lol

anonymous · Answer

thx for your help everyone :)

hayleymeyer · Answer

opssie