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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The variation of heat of reaction with temperature at constant pressure is given by the __________ law.

Antonie's
Kelvin's
Kirchoffs
None of these

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Chemical Engineering Thermodynamics
The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is

R log10 4
Cv log10 4
R loge 4
Cv loge 4

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Chemical Engineering Thermodynamics
An ideal liquid refrigerant should

Both A and B
Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils
Not have unduly high vapour pressure at the condenser temperature
Have low specific heat

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Chemical Engineering Thermodynamics
Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal boiling point, kcal/kmol Tb = normal boiling point, °K )

√(Tb/λb)
λb/Tb
Tb/λb
√(λb/Tb)

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

All of these
Specific Gibbs free energy
Specific entropy
Vapor pressure

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

Cooling
Both B and C
Simultaneous pressure & temperature change
Heating

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