The temperature at which both liquid and gas phases are identical, is called the ____ point:
A. Critical
B. Triple
C. Freezing
D. Boiling
If an ideal solution is formed by mixing two pure liquids in any proportion, then the ______ of mixing is zero:
A. Enthalpy
B. Volume
C. Both A. & B.
D. Neither A nor B
Entropy is a/an:
A. State function
B. Macroscopic property
C. Extensive property
D. None of these
Isentropic process means a constant ____ process:
A. Enthalpy
B. Pressure
C. Entropy
D. None of these
For an ideal solution, the value of activity co-efficient is:
A. 0
B. 1
C. 2
Throttling (Joule-Thomson effect) process is a constant ____ process:
A. Enthalpy
B. Entropy
C. Pressure
D. None of these
Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is:
A. 2
B. 0
C. 1
D.
Entropy change of mixing two liquid substances depends upon the:
A. Molar concentration
B. Quantity (i.e. number of moles)
C. Both A. and B
D. Neither A. nor B
Free energy change at equilibrium is:
A. Zero
B. Positive
C. Negative
D. Indeterminate
Extensive properties of a thermodynamic system depend upon the _____ of the system:
A. Specific volume
B. Temperature
C. Mass
D. Pressure
