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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Heating
Cooling
Simultaneous pressure & temperature change
Both B and C

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Chemical Engineering Thermodynamics
Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will

Increase
First fall and then rise
Remain unchanged
Decrease

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Chemical Engineering Thermodynamics
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.

None of these
Real
Isotonic
Ideal

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Chemical Engineering Thermodynamics
Number of phases in a colloidal system are

1
4
3
2

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

< 1
< 0
> 1

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Chemical Engineering Thermodynamics
Kopp's rule is used to calculate the heat capacity of

All of these
Solids
Gases
Liquids

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