Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is

Chemical Engineering Thermodynamics
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is

None of these

1

∞

None of these

1

∞

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Chemical Engineering Thermodynamics
A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system

U decreases but S is constant

U and S both decreases

Its internal energy (U) decreases and its entropy (S) increases

U is constant but S decreases

U decreases but S is constant

U and S both decreases

Its internal energy (U) decreases and its entropy (S) increases

U is constant but S decreases

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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

None of these

= 0

< 0

> 0

None of these

= 0

< 0

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Chemical Engineering Thermodynamics
For an isothermal reversible compression of an ideal gas

Only ΔH =0

DQ = dE

ΔE = ΔH = 0

Only ΔE = 0

Only ΔH =0

DQ = dE

ΔE = ΔH = 0

Only ΔE = 0

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Chemical Engineering Thermodynamics
For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

Both B and C

Give higher yield of NH₃

Neither A nor B

Shift the equilibrium towards right

Both B and C

Give higher yield of NH₃

Neither A nor B

Shift the equilibrium towards right

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Chemical Engineering Thermodynamics
Free energy

All of these

Remains unchanged in reversible processes carried at constant temperature and pressure

Change during a spontaneous process has a negative value

Decreases in all spontaneous (or irreversible) processes

All of these

Remains unchanged in reversible processes carried at constant temperature and pressure

Change during a spontaneous process has a negative value

Decreases in all spontaneous (or irreversible) processes

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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system

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

Chemical Engineering Thermodynamics For an isothermal reversible compression of an ideal gas

Chemical Engineering Thermodynamics For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

Chemical Engineering Thermodynamics Free energy

Chemical Engineering Thermodynamics
A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system

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

Chemical Engineering Thermodynamics
For an isothermal reversible compression of an ideal gas

Chemical Engineering Thermodynamics
For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

Chemical Engineering Thermodynamics
Free energy