(∂T/∂V)S = - (∂P/∂S)V
(∂S/∂P)T = - (∂V/∂T)P
(∂V/∂S)P = (∂T/∂P)S
(∂S/∂V)T = (∂P/∂T)V
D. (∂S/∂V)T = (∂P/∂T)V
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
Adiabatic
Reversible
Isothermal
None of these
More than
Less than
Equal to
Not related to
Water
Air
Evaporative
Gas
Specific volume
Temperature
Mass
Pressure
0
∞
+ve
-ve
0
< 0
< 1
> 1
Is the most efficient of all refrigeration cycles
Has very low efficiency
Requires relatively large quantities of air to achieve a significant amount of refrigeration
Both (B) and (C)
Steam to ethylene ratio
Temperature
Pressure
None of these
Fugacity
Activity co-efficient
Free energy
None of these
Carnot
Air
Absorption
vapour-ejection
Pressure vs. enthalpy
Pressure vs. volume
Enthalpy vs. entropy
Temperature vs. entropy
Conduction
Convection
Radiation
Condensation
Pressure remains constant
Pressure is increased
Temperature remains constant
None of these
Does not need the addition of external work for its functioning
Transfers heat from high temperature to low temperature
Accomplishes the reverse effect of the heat engine
None of these
0°C and 750 mm Hg
15°C and 750 mm Hg
0°C and 1 kgf/cm2
15°C and 1 kgf/cm2
Volume
Pressure
Temperature
All a, b & c
d ln p/dt = Hvap/RT2
d ln p/dt = RT2/Hvap
dp/dt = RT2/Hvap
dp/dt = Hvap/RT2
Pressure
Temperature
Both (A) & (B)
Neither (A) nor (B)
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
Less than
More than
Equal to or higher than
Less than or equal to
Specific heat
Latent heat of vaporisation
Viscosity
Specific vapor volume
Less than
More than
Same as
Not related to
+ve
0
-ve
∞
Heating takes place
Cooling takes place
Pressure is constant
Temperature is constant
Gibbs-Duhem equation
Gibbs-Helmholtz equation
Third law of thermodynamics
Joule-Thomson effect
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
Chemical potential
Activity
Fugacity
Activity co-efficient
State function
Macroscopic property
Extensive property
None of these
Increase
Decrease
Not alter
None of these