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
Cracking
Full distillation

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Engineering Thermodynamics
An open system is one in which

Both energy and mass cross the boundaries of the system
Mass crosses the boundary but not the energy
Mass does not cross boundaries of the system, though energy may do so
Neither mass nor energy crosses the boundaries of the system

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Engineering Thermodynamics
According to Avogadro’s law

Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules
The sum of partial pressure of the mixture of two gases is sum of the two
All of these
The product of the gas constant and the molecular mass of an ideal gas is constant

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