Isothermal
Adiabatic
Isobaric
Isochoric
A. Isothermal
Amount of energy transferred
Direction of energy transfer
Irreversible processes only
Non-cyclic processes only
Contracts
Expands
Does not change in volume
Either (A), (B) or (C)
More than
Less than
Equal to
Not related to
Reversible and isothermal
Irreversible and constant enthalpy
Reversible and constant entropy
Reversible and constant enthalpy
(R/ΔH) (1/T1 - 1/T2)
(ΔH/R) (1/T1 - 1/T2)
(ΔH/R) (1/T2 - 1/T1)
(1/R) (1/T1 - 1/T2)
Enthalpies of all elements in their standard states are assumed to be zero
Combustion reactions are never endothermic in nature
Heat of reaction at constant volume is equal to the change in internal energy
Clausius-Clapeyron equation is not applicable to melting process
Compressibility
Work done under adiabatic condition
Work done under isothermal condition
Co-efficient of thermal expansion
Decreases
Increases
Remains constant
Decreases logarithmically
1
< 1
> 1
>> 1
Isothermal
Adiabatic
Isobaric
Isometric
At low temperature and high pressure
At standard state
Both (A) and (B)
In ideal state
Enhanced COP
Decreased COP
No change in the value of COP
Increased or decreased COP; depending upon the type of refrigerant
The net change in entropy in any reversible cycle is always zero
The entropy of the system as a whole in an irreversible process increases
The entropy of the universe tends to a maximum
The entropy of a substance does not remain constant during a reversible adiabatic change
Constant volume
Polytropic
Adiabatic
Constant pressure
(p + a/V2)(V - b) = nRT
PV = nRT
PV = A + B/V + C/V2 + D/V3 + ...
None of these
Eutectic
Triple
Plait
Critical
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
Low temperature
High pressure
Both (A) and (B)
Neither (A) nor (B)
Free expansion of a gas
Compression of air in a compressor
Expansion of steam in a turbine
All (A), (B) & (C)
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
Solids
Liquids
Gases
All (A), (B) & (C)
Is increasing
Is decreasing
Remain constant
Data insufficient, can't be predicted
(∂E/∂T)V
(∂E/∂V)T
(∂E/∂P)V
(∂V/∂T)P
Matter
Energy
Neither matter nor energy
Both matter and energy
0
1
< 1
> 1
Minimum
Zero
Maximum
None of these
Kelvin's
Antoines
Kirchoffs
None of these
+ve
-ve
0
∞
Specific heat at constant pressure (Cp)
Specific heat at constant volume (Cv)
Joule-Thompson co-efficient
None of these
349
651
667
1000