Short Answer
One of the most efficient engines built so far has the following characteristics:
combustion chamber temperature = 1900°C; exhaust temperature = 430°C.
7 × 109 cal of fuel produces 1.4 × 1010 J of work in one hour.
(a) What is the actual efficiency of this engine?
(b) What is the Carnot efficiency of this engine?
Correct Answer:

Verified
Correct Answer:
Verified
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