Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg . K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is

Chemical Engineering Thermodynamics
Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg . K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is

Partially condensed vapour with quality of 0.9

Partially condensed vapour with quality of 0.1

Saturated vapour

Superheated vapour

Partially condensed vapour with quality of 0.9

Partially condensed vapour with quality of 0.1

Saturated vapour

Superheated vapour

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Chemical Engineering Thermodynamics
All gases above its inversion temperature, in a throttling process will show

Either A or C

A cooling effect

No change in temperature

A heating effect

Either A or C

A cooling effect

No change in temperature

A heating effect

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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

Day

Minute

Second

Hour

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Chemical Engineering Thermodynamics
Free energy

Remains unchanged in reversible processes carried at constant temperature and pressure

All of these

Change during a spontaneous process has a negative value

Decreases in all spontaneous (or irreversible) processes

Remains unchanged in reversible processes carried at constant temperature and pressure

All of these

Change during a spontaneous process has a negative value

Decreases in all spontaneous (or irreversible) processes

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Chemical Engineering Thermodynamics
Compressibility factor of a gas is

Not a function of its nature

Unity, if it follows PV = nRT

Not a function of its temperature

Not a function of its pressure

Not a function of its nature

Unity, if it follows PV = nRT

Not a function of its temperature

Not a function of its pressure

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Chemical Engineering Thermodynamics
At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is

4.238

1.572

1.9398

3.389

4.238

1.572

1.9398

3.389

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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg . K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is

Chemical Engineering Thermodynamics All gases above its inversion temperature, in a throttling process will show

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

Chemical Engineering Thermodynamics Free energy

Chemical Engineering Thermodynamics Compressibility factor of a gas is

Chemical Engineering Thermodynamics
Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg . K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is

Chemical Engineering Thermodynamics
All gases above its inversion temperature, in a throttling process will show

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

Chemical Engineering Thermodynamics
Free energy

Chemical Engineering Thermodynamics
Compressibility factor of a gas is