Van Laar equation
Margules equation
Wilson's equation
All (A), (B) and (C)
D. All (A), (B) and (C)
J/s
J.S
J/kmol
kmol/J
Enthalpy
Entropy
Pressure
None of these
Zero
50%
Almost 100%
unpredictable
Heat absorbed
Work done
Both (A) & (B)
Neither (A) nor (B)
At constant pressure
By throttling
By expansion in an engine
None of these
Tds = dE - dW = 0
dE - dW - Tds = 0
Tds - dE + dW < 0
Tds - dT + dW < 0
State functions
Path functions
Intensive properties
Extensive properties
Melting point of ice
Melting point of wax
Boiling point of liquids
None of these
Increase the partial pressure of I2
Decrease the partial pressure of HI
Diminish the degree of dissociation of HI
None of these
Solubility increases as temperature increases
Solubility increases as temperature decreases
Solubility is independent of temperature
Solubility increases or decreases with temperature depending on the Gibbs free energy change of solution
Bertholet equation
Clausius-Clapeyron equation
Beattie-Bridgeman equation
None of these
Critical properties
Specific gravity
Specific volume
Thermal conductivity
Enthalpy
Volume
Both 'a' & 'b'
Neither 'a' nor 'b'
349
651
667
1000
Specific heat
Latent heat of vaporisation
Viscosity
Specific vapor volume
Zeroth
First
Second
Third
It should be non-explosive
It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils
Its vapor pressure at the condenser temperature should be very high
None of these
RT d ln P
RT d ln f
R d ln f
None of these
Phase rule variables are intensive properties
Heat and work are both state function
The work done by expansion of a gas in vacuum is zero
CP and CV are state function
Zero
Negative
Very large compared to that for endothermic reaction
Not possible to predict
Equilibrium
Adiabatic
Steady
Unsteady
More than
Less than
Equal to
Not related to
its internal energy (U) decreases and its entropy (S) increases
U and S both decreases
U decreases but S is constant
U is constant but S decreases
Temperature
Pressure
Volume
None of these
Same as Carnot cycle
Same as reverse Carnot cycle
Dependent on the refrigerant's properties
The least efficient of all refrigeration processes
0
∞
+ve
-ve
ds = 0
ds < 0
ds > 0
ds = Constant
Work required to refrigeration obtained
Refrigeration obtained to the work required
Lower to higher temperature
Higher to lower temperature
Carnot
Air
Absorption
vapour-ejection
Decreases
Increases
Remain same
Decreases linearly