Minimum number of degree of freedom of a system is zero
Degree of freedom of a system containing a gaseous mixture of helium, carbon dioxide and hydrogen is 4
For a two phase system in equilibrium made up of four non-reacting chemical species, the number of degrees of freedom is 4
Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation
D. Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation
Molal concentration difference
Molar free energy
Partial molar free energy
Molar free energy change
ds = 0
ds <0
ds > 0
ds = Constant
J/s
J.S
J/kmol
kmol/J
The statement as per Gibbs-Helmholtz
Called Lewis-Randall rule
Henry's law
None of these
Adiabatic
Isothermal
Isometric
None of these
Adiabatic process
Endothermic reaction
Exothermic reaction
Process involving a chemical reaction
Unity
Activity
Both (A) & (B)
Neither (A) nor (B)
Critical
Boyle
Inversion
Reduced
Expansion of an ideal gas against constant pressure
Atmospheric pressure vaporisation of water at 100°C
Solution of NaCl in water at 50°C
None of these
Temperature
Pressure
Volume
Entropy
Expansion valve
Condenser
Refrigerator
Compressor
1st
Zeroth
3rd
None of these
Expansion of a real gas
Reversible isothermal volume change
Heating of an ideal gas
Cooling of a real gas
Surface tension
Free energy
Specific heat
Refractive index
Water
Ammonia
Freon
Brine
(∂E/∂ni)S, v, nj
(∂G/∂ni)T, P, nj = (∂A/∂ni) T, v, nj
(∂H/∂ni)S, P, nj
All (A), (B) and (C)
Specific volume
Work
Pressure
Temperature
0
+ve
-ve
∞
Melting point of ice
Melting point of wax
Boiling point of liquids
None of these
Not liquify (barring exceptions)
Immediately liquify
Never liquify however high the pressure may be
None of these
Cp < Cv
Cp = Cv
Cp > Cv
C ≥ Cv
The expansion of a gas in vacuum is an irreversible process
An isometric process is a constant pressure process
Entropy change for a reversible adiabatic process is zero
Free energy change for a spontaneous process is negative
Work done under adiabatic condition
Co-efficient of thermal expansion
Compressibility
None of these
Volume, mass and number of moles
Free energy, entropy and enthalpy
Both (A) and (B)
None of these
0
1
2
3
Volume
Pressure
Temperature
All (A), (B) and (C)
Enthalpy
Pressure
Entropy
None of these
If an insoluble gas is passed through a volatile liquid placed in a perfectly insulated container, the temperature of the liquid will increase
A process is irreversible as long as Δ S for the system is greater than zero
The mechanical work done by a system is always equal to∫P.dV
The heat of formation of a compound is defined as the heat of reaction leading to the formation of the compound from its reactants
Enhanced COP
Decreased COP
No change in the value of COP
Increased or decreased COP; depending upon the type of refrigerant
300 × (32/7)
300 × (33/5)
300 × (333/7)
300 × (35/7)