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Thermodynamics for Chemical

Which of the following is not a reversible process ?

August 29, 2021March 11, 2019 by admin
Which of the following is not a reversible process ?

A. Expansion of an ideal gas against constant pressure
B. Atmospheric pressure vaporisation of water at 100°C
C. Solution of NaCl in water at 50°C
D. None of these

Categories Thermodynamics for Chemical

Equilibrium constant of a reaction varies with the____________________?

August 29, 2021March 11, 2019 by admin
Equilibrium constant of a reaction varies with the____________________?

A. Initial concentration of the reactant
B. Pressure
C. Temperature
D. None of these

Categories Thermodynamics for Chemical

For a cyclic process, a fixed ratio between heat and work___________________?

August 29, 2021March 11, 2019 by admin
For a cyclic process, a fixed ratio between heat and work___________________?

A. Always exists
B. May exist
C. Never exists
D. Is difficult to predict

Categories Thermodynamics for Chemical

When dilute aqueous solutions of two salts are mixed, the process is associated with ___________________?

August 29, 2021March 11, 2019 by admin
When dilute aqueous solutions of two salts are mixed, the process is associated with ___________________?

A. Decrease in temperature
B. Increase in temperature
C. No change in temperature
D. Change in temperature which is a function of composition

Categories Thermodynamics for Chemical

Gibbs free energy of mixing at constant pressure and temperature is always__________________?

August 29, 2021March 11, 2019 by admin
Gibbs free energy of mixing at constant pressure and temperature is always__________________?

A. 0
B. ∞
C. + ve
D. – ve

Categories Thermodynamics for Chemical

Compressibility factor of a gas is___________________?

August 29, 2021March 11, 2019 by admin
Compressibility factor of a gas is___________________?

A. Not a function of its pressure
B. Not a function of its nature
C. Not a function of its temperature
D. Unity, if it follows PV = nRT

Categories Thermodynamics for Chemical

In a homogeneous solution, the fugacity of a component depends upon the __________________?

August 29, 2021March 11, 2019 by admin
In a homogeneous solution, the fugacity of a component depends upon the __________________?

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

Categories Thermodynamics for Chemical

Which of the following is an extensive property of a system ?

August 29, 2021March 11, 2019 by admin
Which of the following is an extensive property of a system ?

A. Heat capacity
B. Molal heat capacity
C. Pressure
D. Concentration

Categories Thermodynamics for Chemical

In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible ______________ process?

August 29, 2021March 11, 2019 by admin
In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible ______________ process?

A. Isobaric
B. Isothermal
C. Isentropic
D. Isometric

Categories Thermodynamics for Chemical

Henry’s law is closely obeyed by a gas, when its _____________ is extremely high?

August 29, 2021March 11, 2019 by admin
Henry’s law is closely obeyed by a gas, when its _____________ is extremely high?

A. Pressure
B. Solubility
C. Temperature
D. None of these

Categories Thermodynamics for Chemical
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