Fugacity
Activity co-efficient
Free energy
All (A), (B) & (C)
D. All (A), (B) & (C)
Le-Chatelier principle
Kopp's rule
Law of corresponding state
Arrhenius hypothesis
Enthalpy does not remain constant
Entire apparatus is exposed to surroundings
Temperature remains constant
None of these
A = H - TS
A = E - TS
A = H + TS
None of these
Two isothermal and two isentropic
Two isobaric and two isothermal
Two isochoric and two isobaric
Two isothermals and two isochoric
< 0
> 0
= 0
None of these
(dF)T, p < 0
(dF)T, p > 0
(dF)T, p = 0
(dA)T, v < 0
Volume
Density
Temperature
Pressure
Low temperature and high pressure
Low temperature and low pressure
High temperature and high pressure
High temperature and low pressure
Entropy
Temperature
Internal energy
Enthalpy
Zero
Positive
Negative
Indeterminate
Non-flow reversible
Adiabatic
Both (A) and (B)
Neither (A) nor (B)
Not have a sub-atmospheric vapour pressure at the temperature in the refrigerator coils
Not have unduly high vapour pressure at the condenser temperature
Both (A) and (B)
Have low specific heat
50 kcal/hr
200 BTU/hr
200 BTU/minute
200 BTU/day
Rate of change of vapour pressure with temperature
Effect of an inert gas on vapour pressure
Calculation of ΔF for spontaneous phase change
Temperature dependence of heat of phase transition
0
∞
+ve
-ve
Increased COP
Same COP
Decreased COP
Increased or decreased COP; depending upon the type of refrigerant
Pressure vs. enthalpy
Pressure vs. volume
Enthalpy vs. entropy
Temperature vs. entropy
The values of (∂P/∂V)T and (∂2P/∂V2)T are zero for a real gas at its critical point
Heat transferred is equal to the change in the enthalpy of the system, for a constant pressure, non-flow, mechanically reversible process
Thermal efficiency of a Carnot engine depends upon the properties of the working fluid besides the source & sink temperatures
During a reversible adiabatic process, the entropy of a substance remains constant
J/s
J.S
J/kmol
kmol/J
Expansion in an engine
Following a constant pressure cycle
Throttling
None of these
Freezing
Triple
Boiling
Boyle
Van Laar
Margules
Gibbs-Duhem
Gibbs-Duhem-Margules
Pressure must be kept below 5.2 atm
Temperature must be kept above - 57°C
Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C
Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively
Isothermal
Adiabatic
Isentropic
None of these
Calorific value
Heat of reaction
Heat of combustion
Heat of formation
Cold reservoir approaches zero
Hot reservoir approaches infinity
Either (A) or (B)
Neither (A) nor (B)
States that n1dμ1 + n2dμ2 + ....njdμj = 0, for a system of definite composition at constant temperature and pressure
Applies only to binary systems
Finds no application in gas-liquid equilibria involved in distillation
None of these
Property of the system
Path function
Point function
State description of a system
The energy change of a system undergoing any reversible process is zero
It is not possible to transfer heat from a lower temperature to a higher temperature
The total energy of system and surrounding remains the same
None of the above
1
< 1
> 1
>> 1