Engineering Thermodynamics
One kg of carbon monoxide requires 4/7 kg of oxygen and produces

7/3 kg of carbon monoxide gas
11/7 kg of carbon dioxide gas
8/3 kg of carbon monoxide gas
11/3 kg of carbon dioxide gas

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Engineering Thermodynamics
The universal gas constant (or molar constant) of a gas is the product of

Atomic mass of the gas and the gas constant
Molecular mass of the gas and the gas constant
Molecular mass of the gas and the specific heat at constant pressure
Molecular mass of the gas and the specific heat at constant volume

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