Thermodynamics for Chemical

During Joule-Thomson expansion of gases_________________?

Byadmin March 11, 2019August 29, 2021

During Joule-Thomson expansion of gases_________________?

A. Enthalpy remains constant
B. Entropy remains constant
C. Temperature remains constant
D. None of these

Thermodynamics for Chemical

The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?

The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?

A. Increases
B. Decreases
C. Remains unchanged
D. Decreases linearly

Read More The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?
Thermodynamics for Chemical

The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

A. 100,000 kW
B. 160,000 kW
C. 200,000 kW
D. 320,000 kW

Read More The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?
Thermodynamics for Chemical

For a spontaneous process, free energy__________________?

For a spontaneous process, free energy__________________?

A. Is zero
B. Increases
C. Decreases whereas the entropy increases
D. And entropy both decrease

Read More For a spontaneous process, free energy__________________?
Thermodynamics for Chemical

For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm3 and that in vapour phase in 391.1 cm3.Fugacity of water (in kPa) at 9000 kPa will be__________________?

For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm3 and that in vapour phase in 391.1 cm3.Fugacity of water (in kPa) at 9000 kPa will be__________________?

A. 6738.9
B. 6753.5
C. 7058.3
D. 9000

Read More For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm3 and that in vapour phase in 391.1 cm3.Fugacity of water (in kPa) at 9000 kPa will be__________________?
CHEMICAL ENGINEERING | Thermodynamics for Chemical

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?

A. Critical
B. Boyle
C. Inversion
D. Reduced

Read More The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?
Thermodynamics for Chemical

Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be_________________?

Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be_________________?

A. 0
B. 1
C. 2
D. 3

Read More Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be_________________?

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