Engineering Thermodynamics
When gas is heated at constant pressure, the heat supplied is utilized in

Increasing the internal energy of gas
None of these
Increasing the internal energy of gas and also for doing some external work
Doing some external work

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Engineering Thermodynamics
The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and re-condensed, then the liquid with the next higher boiling point is then evaporated and re-condensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called

Full distillation
Cracking
Carbonisation
Fractional distillation

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Engineering Thermodynamics
The mass of flue gas per kg of fuel is the ratio of the

Mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel
Mass of oxygen in 1 kg of flue gas to the mass of oxygen in 1 kg of fuel
Mass of oxygen in 1 kg of fuel to the mass of oxygen in 1 kg of flue gas
Mass of carbon in 1 kg of fuel to the mass of carbon in 1 kg of flue gas

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