Engineering Thermodynamics
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from

Zeroth low of thermodynamic
Second law to thermodynamics
First law of thermodynamics
Basic law of thermodynamics

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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

Fractional distillation
Full distillation
Carbonisation
Cracking

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