Reverse Carnot cycle
Ordinary vapour-compression cycle
Vapour-compression process with a reversible expansion engine
Air refrigeration cycle
D. Air refrigeration cycle
More than
Less than
Equal to
Not related to
Low pressure and high temperature
Low pressure and low temperature
Low temperature and high pressure
High temperature and high pressure
0
1
2
3
Vapor pressure
Specific Gibbs free energy
Specific entropy
All (A), (B) and (C)
Evaporation
Liquid extraction
Drying
Distillation
H = E - PV
H = F - TS
H - E = PV
None of these
SO2
NH3
CCl2F2
C2H4Cl2
Entropy and enthalpy are path functions
In a closed system, the energy can be exchanged with the surrounding, while matter cannot be exchanged
All the natural processes are reversible in nature
Work is a state function
6738.9
6753.5
7058.3
9000
Hess's
Kirchoff's
Lavoisier and Laplace
None of these
PV
2PV
PV/2
0
Adiabatic
Isothermal
Isometric
None of these
In which there is a temperature drop
Which is exemplified by a non-steady flow expansion
Which can be performed in a pipe with a constriction
In which there is an increase in temperature
Mass
Energy
Momentum
None of these
Rectangle
Rhombus
Trapezoid
Circle
Pressure remains constant
Pressure is increased
Temperature remains constant
None of these
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
Low T, low P
High T, high P
Low T, high P
High T, low P
0
1
2
3
Enthalpy remains constant
Entropy remains constant
Temperature remains constant
None of these
(∂T/∂V)S = - (∂P/∂S)V
(∂S/∂P)T = - (∂V/∂T)P
(∂V/∂S)P = (∂T/∂P)S
(∂S/∂V)T = (∂P/∂T)V
Directly proportional to pressure
Inversely proportional to pressure
Unity at all pressures
None of these
More
Less
Same
Unpredictable; depends on the particular reaction
Molar volume, density, viscosity and boiling point
Refractive index and surface tension
Both (A) and (B)
None of these
Increase
Decrease
Remain same
Increase in summer and will decrease in winter
Helmholtz
Gibbs
Both a & b
Neither 'a' nor 'b'
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
1
< 1
> 1
>> 1
+ve
-ve
0
∞
By throttling
By expansion in an engine
At constant pressure
None of these