All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?

Byadmin March 12, 2019August 29, 2021

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?

A. CO2
B. H2
C. O2
D. N2

Thermodynamics for Chemical

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__________________?

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__________________?

A. 1.572
B. 1.9398
C. 3.389
D. 4.238

Read More 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__________________?
Thermodynamics for Chemical

The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?

The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?

A. Temperature
B. Pressure
C. Composition
D. All (A), B. and (C)

Read More The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?
Thermodynamics for Chemical

Which of the following behaves most closely like an ideal gas ?

Which of the following behaves most closely like an ideal gas ?

A. He
B. N2
C. O2
D. H2

Read More Which of the following behaves most closely like an ideal gas ?
Thermodynamics for Chemical

Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?

Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?

A. Below
B. At
C. Above
D. Either B. or C.

Read More Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?
Thermodynamics for Chemical

During Joule-Thomson expansion of gases_________________?

During Joule-Thomson expansion of gases_________________?

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

Read More During Joule-Thomson expansion of gases_________________?
Thermodynamics for Chemical

In jet refrigerators, the refrigerating fluid is practically always_________________?

In jet refrigerators, the refrigerating fluid is practically always_________________?

A. Water
B. Ammonia
C. Freon
D. Brine

Read More In jet refrigerators, the refrigerating fluid is practically always_________________?

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