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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one

Day
Minute
Second
Hour

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Chemical Engineering Thermodynamics
Standard temperature and pressure (S.T.P.) is

15°C and 1 kgf/cm²
15°C and 750 mm Hg
0°C and 1 kgf/cm²
0°C and 750 mm Hg

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Chemical Engineering Thermodynamics
One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

10373
30554
4988.4
4364.9

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Chemical Engineering Thermodynamics
Throttling (Joule-Thomson effect) process is a constant __________ process.

Entropy
Enthalpy
None of these
Pressure

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Chemical Engineering Thermodynamics
A nozzle is a device, which

Increases both kinetic energy and pressure
Increases kinetic energy and decreases pressure
Reduces both kinetic energy and pressure
Reduces kinetic energy and increases pressure

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Chemical Engineering Thermodynamics
When a system is in equilibrium for all possible processes, the differential or finite change of entropy is

> 0
< 0
None of these
= 0

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