Question: Steam locomotives have an efficiency of 17.0% and operate with a hot steam temperature of 425C. (a) What would the cold reservoir temperature be if

Steam locomotives have an efficiency of 17.0% and operate with a hot steam temperature of 425°C.

(a) What would the cold reservoir temperature be if this were a Carnot engine? 

(b) What would the maximum efficiency of this steam engine be if its cold reservoir temperature were 150°C?

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