Engineering Thermodynamics
An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is

Feasible
Possible
Possible, but with lot of sophistications
Impossible

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Engineering Thermodynamics
Mond gas is obtained by

Carbonisation of bituminous coal
Passing air and a large amount of steam over waste coal at about 650°C
Passing steam over incandescent coke
Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast

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