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

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

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

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Engineering Thermodynamics
Otto cycle consists of

Two constant volume and two isentropic processes
Two constant pressure and two isentropic processes
One constant pressure, one constant volume and two isentropic processes
Two constant volume and two isothermal processes

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