Thermodynamics for Chemical

Pick out the undesirable property for a good refrigerant ?

Byadmin March 12, 2019August 30, 2021

Pick out the undesirable property for a good refrigerant ?

A. High thermal conductivity
B. Low freezing point
C. Large latent heat of vaporisation
D. High viscosity

Thermodynamics for Chemical

Joule-Thomson effect i.e., a throttling process is a constant _____________ process?

Joule-Thomson effect i.e., a throttling process is a constant _____________ process?

A. Entropy
B. Temperature
C. Internal energy
D. Enthalpy

Read More Joule-Thomson effect i.e., a throttling process is a constant _____________ process?
Thermodynamics for Chemical

Ideal gas law is applicable at____________________?

Ideal gas law is applicable at____________________?

A. Low T, low P
B. High T, high P
C. Low T, high P
D. High T, low P

Read More Ideal gas law is applicable at____________________?
Thermodynamics for Chemical

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?

In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?

A. n = y = 1.4
B. n = 0
C. n = 1
D. n = 1.66

Read More In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?
Thermodynamics for Chemical

Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?

Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?

A. Decreases
B. Decreases exponentially
C. Increases
D. Remain constant

Read More Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?
Thermodynamics for Chemical

There is a change in ______________ during the phase transition?

There is a change in ______________ during the phase transition?

A. Volume
B. Pressure
C. Temperature
D. All a, b & c

Read More There is a change in ______________ during the phase transition?
Thermodynamics for Chemical

“The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

“The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

A. The statement as per Gibbs-Helmholtz
B. Called Lewis-Randall rule
C. Henry’s law
D. None of these

Read More “The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

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