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

Cracking
Fractional distillation
Carbonisation
Full distillation

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Engineering Thermodynamics
Which of the following is the correct statement?

All engines are designed as reversible in order to obtain maximum efficiency.
All the reversible and irreversible engines have the same efficiency.
Irreversible engines have maximum efficiency.
All the reversible engines have the same efficiency.

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Engineering Thermodynamics
According to Avogadro's law, for a given pressure and temperature, each molecule of a gas

Occupies volume inversely proportional to its specific weight
Occupies same volume
Occupies volume proportional to its specific weight
Occupies volume inversely proportional to its molecular weight

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