Air compressor
Liquid cooling system of an automobile
Boiler
None of these
B. Liquid cooling system of an automobile
Work required to refrigeration obtained
Refrigeration obtained to the work required
Lower to higher temperature
Higher to lower temperature
The available energy in an isolated system for all irreversible (real) processes decreases
The efficiency of a Carnot engine increases, if the sink temperature is decreased
The reversible work for compression in non-flow process under isothermal condition is the change in Helmholtz free energy
All (A), (B) and (C)
F = A + PV
F = E + A
F = A - TS
F = A + TS
By throttling
By expansion in an engine
At constant pressure
None of these
Property of the system
Path function
Point function
State description of a system
Temperature
Mass
Volume
Pressure
Infinity
Unity
Constant
Negative
Entropy
Gibbs free energy
Internal energy
All (A), (B) & (C)
Same in both the phases
Zero in both the phases
More in vapour phase
More in liquid phase
Value of absolute entropy
Energy transfer
Direction of energy transfer
None of these
Freon-12
Ethylene
Ammonia
Carbon dioxide
Less
More
Same
More or less depending upon the extent of work done
Decreases
Increases
Remains constant
Decreases logarithmically
∞
0
< 0
> 0
Prediction of the extent of a chemical reaction
Calculating absolute entropies of substances at different temperature
Evaluating entropy changes of chemical reaction
Both (B) and (C)
Violates second law of thermodynamics
Involves transfer of heat from low temperature to high temperature
Both (A) and (B)
Neither (A) nor (B)
3
1
2
0
Volume
Pressure
Temperature
All (A), (B) and (C)
In standard state
At high pressure
At low temperature
In ideal state
SO2
NH3
CCl2F2
C2H4Cl2
Expansion of a real gas
Reversible isothermal volume change
Heating of an ideal gas
Cooling of a real gas
A heating effect
No change in temperature
A cooling effect
Either (A) or (C)
Triple point
Boiling point
Below triple point
Always
Process must be isobaric
Temperature must decrease
Process must be adiabatic
Both (B) and (C)
Logarithmic
Arithmetic
Geometric
Harmonic
The chemical potential of a pure substance depends upon the temperature and pressure
The chemical potential of a component in a system is directly proportional to the escaping tendency of that component
The chemical potential of ith species (μi) in an ideal gas mixture approaches zero as the pressure or mole fraction (xi) tends to be zero at constant temperature
The chemical potential of species 'i' in the mixture (μi) is mathematically represented as,μi = ∂(nG)/∂ni]T,P,nj where, n, ni and nj respectively denote the total number of moles, moles of ith species and all mole numbers except ith species. 'G' is Gibbs molar free energy
At constant pressure
By throttling
By expansion in an engine
None of these
Are more or less constant (vary from 0.2 to 0.3)
Vary as square of the absolute temperature
Vary as square of the absolute pressure
None of these
State functions
Path functions
Intensive properties
Extensive properties
Fusion
Vaporisation
Transition
None of these