Engineering Thermodynamics
According to Dalton's law, the total pressure of the mixture of gases is equal to

Sum of the partial pressures of all
Average of the partial pressures of all
Greater of the partial pressures of all
Sum of the partial pressures of all divided by average molecular weight

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Engineering Thermodynamics
According to Kelvin-Planck’s statement of second law of thermodynamics,

It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
It is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body
None of these

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Engineering Thermodynamics
Mond gas is obtained by

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

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