The amount of work needed is path dependent
Work alone cannot bring out such a change of state
The amount of work needed is independent of path
More information is needed to conclude anything about the path dependence or otherwise of the work needed
A. The amount of work needed is path dependent
Increase the partial pressure of I2
Decrease the partial pressure of HI
Diminish the degree of dissociation of HI
None of these
dE = Tds - PdV
dQ = CvdT + PdV
dQ = CpdT + Vdp
Tds = dE - PdV
Zero
Positive
Negative
Indeterminate
Δ S1 is always < Δ SR
Δ S1 is sometimes > Δ SR
Δ S1 is always > Δ SR
Δ S1 is always = Δ SR
Increases with rise in pressure
Decreases with rise in pressure
Is independent of pressure
Is a path function
Oxygen
Nitrogen
Air
Hydrogen
Decrease in velocity
Decrease in temperature
Decrease in kinetic energy
Energy spent in doing work
Solution
Formation
Dilution
Combustion
A heating effect
No change in temperature
A cooling effect
Either (A) or (C)
F = A + PV
F = E + A
F = A - TS
F = A + TS
Heat pump
Heat engine
Carnot engine
None of these
Unity
Zero
That of the heat of reaction
Infinity
More
Less
Same
Unpredictable; depends on the particular reaction
Bucket
Throttling
Separating
A combination of separating & throttling
Enthalpy does not remain constant
Entire apparatus is exposed to surroundings
Temperature remains constant
None of these
+ve
0
-ve
∞
[∂(G/T)/∂T] = - (H/T2)
[∂(A/T)/∂T]V = - E/T2
Both (A) and (B)
Neither (A) nor (B)
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
Non-flow reversible
Adiabatic
Both (A) and (B)
Neither (A) nor (B)
Increased COP
Same COP
Decreased COP
Increased or decreased COP; depending upon the type of refrigerant
Zero
+ve
-ve
Dependent on the path
Cv.dT
Cp.dT
∫ Cp.dT
∫ Cv.dT
A refrigeration cycle violates the second law of thermodynamics
Refrigeration cycle is normally represented by a temperature vs. entropy plot
In a refrigerator, work required decreases as the temperature of the refrigerator and the temperature at which heat is rejected increases
One ton of refrigeration is equivalent to the rate of heat absorption equal to 3.53 kW
Is increasing
Is decreasing
Remain constant
Data insufficient, can't be predicted
Gibbs-Duhem
Gibbs-Helmholtz
Maxwell's
None of these
He
N2
O2
H2
Activity
Fugacity
Activity co-efficient
Fugacity co-efficient
Becomes zero
Becomes infinity
Equals 1 kcal/kmol °K
Equals 0.24 kcal/kmol °K
Low pressure and high temperature
Low pressure and low temperature
High pressure and low temperature
High pressure and high temperature
Ethyl chloride or methyl chloride
Freon-12
Propane
NH3 or CO2