Engineering Thermodynamics
In a no flow reversible process for which p = (-3V + 15) × 105 N/m², V changes from 1 m3 to 2 m3. The work done will be about

100 × 10⁵ joules
1 × 10⁵ joules
10 × 10⁵ joules
10 × 10⁵ kilo joules

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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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Engineering Thermodynamics
Which of the following is the correct statement?

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

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