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Questions  

An inventor claims to have made an engine which consumes 1 g fuel per sec (of calorific value 2 kcal /g) and delivers 10 kW of power. Mark the correct statement:

a
This is possible.
b
This is impossible.
c
The possibility of the invention is determined by the design of the engine.
d
The possibility cf the invention is determined by the nature of the fuel.

detailed solution

Correct option is C

ηmax=1-T2T1=WQ1<1Always

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