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Solved: CP An ideal Carnot engine operates between 500o C
Chapter 20, Problem 35P(choose chapter or problem)
Problem 35P
CP An ideal Carnot engine operates between 500o C and 100o C with a heat input of 250 J per cycle. (a) How much heat is delivered to the cold reservoir in each cycle? (b) What minimum number of cycles is necessary for the engine to lift a 500-kg rock through a height of 100 m?
Questions & Answers
QUESTION:
Problem 35P
CP An ideal Carnot engine operates between 500o C and 100o C with a heat input of 250 J per cycle. (a) How much heat is delivered to the cold reservoir in each cycle? (b) What minimum number of cycles is necessary for the engine to lift a 500-kg rock through a height of 100 m?
ANSWER:Solution 35P
Step 1:
For carnot heat engine
Hereand are the temperatures of cold and hot reservoir respectively and are the heat flow in cold reservoir and the heat flow from hot reservoir respectively.
The minimum number of cycles necessarily for the engine to lift a mass m through a height of h is given by