Engineering Thermodynamics
Universal gas constant is defined as equal to product of the molecular weight of the gas and

Ratio of two specific heats
Gas constant
Specific heat at constant volume
Specific heat at constant pressure

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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

Carbonisation
Fractional distillation
Full distillation
Cracking

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