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.Management Sciences
Category: Thermodynamics for Chemical
Which of the following is true for Virial equation of state ?
A. Virial co-efficients are universal constants
B. Virial co-efficients ‘B’ represents three body interactions
C. Virial co-efficients are function of temperature only
D. For some gases, Virial equations and ideal gas equations are the same
Which of the following is not affected by temperature changes ?
A. Fugacity
B. Activity co-efficient
C. Free energy
D. None of these
When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?
A. More in vapour phase
B. More in liquid phase
C. Same in both the phases
D. Replaced by chemical potential which is more in vapour phase
Joule-Thomson co-efficient for a perfect gas is_____________________?
A. Zero
B. Positive
C. Negative
D. None of these
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
Heat of formation of an element in its standard state is___________________?
A. 0
B. 0
D. A function of pressure
Activity co-efficient is a measure of the____________________?
A. Departure from ideal solution behaviour
B. Departure of gas phase from ideal gas law
C. Vapour pressure of liquid
D. None of these
Gibbs free energy of a pure fluid approaches _____________ as the pressure tends to zero at constant temperature?
A. Infinity
B. Minus infinity
C. Zero
D. None of these
A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?
A. Isolated
B. Closed
C. Open
D. None of these
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