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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v₁ = 1 m³ and v₂ 3 m³ ) is max imum, when the value of 'n' is

1.44
1.66
1

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Chemical Engineering Thermodynamics
A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be __________ litres.

448
Data insufficient; can't be computed
224
22.4

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Chemical Engineering Thermodynamics
In a working refrigerator, the value of COP is always

< 1
> 1
< 0

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Chemical Engineering Thermodynamics
Boiling of liquid is accompanied with increase in the

Specific entropy
All of these
Vapor pressure
Specific Gibbs free energy

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Chemical Engineering Thermodynamics
The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

More
Data insufficient to predict
Same
Less

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Chemical Engineering Thermodynamics
All gases during throttling process at atmospheric temperature and pressure show a cooling effect except

N₂
O₂
CO₂
H₂

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