T
T and P
T, P and Z
T and Z
B. T and P
Expansion of a real gas
Reversible isothermal volume change
Heating of an ideal gas
Cooling of a real gas
Increases with increase in pressure
Decreases with increase in temperature
Is independent of temperature
None of these
Increases
Decreases
Remains unchanged
May increase or decrease; depends on the gas
Two isothermal and two isentropic
Two isobaric and two isothermal
Two isochoric and two isobaric
Two isothermals and two isochoric
Superheated
Desuperheated
Non-condensable
None of these
Vapour pressure is relatively low and the temperature does not vary over wide limits
Vapour obeys the ideal gas law and the latent heat of vaporisation is constant
Volume in the liquid state is negligible compared with that in the vapour state
All (A), (B) and (C)
Increases with rise in pressure
Decreases with rise in pressure
Is independent of pressure
Is a path function
2.73
28.3
273
283
Always exists
May exist
Never exists
Is difficult to predict
At constant pressure
By throttling
By expansion in an engine
None of these
Low T, low P
High T, high P
Low T, high P
High T, low P
Tds = dE - dW = 0
dE - dW - Tds = 0
Tds - dE + dW < 0
Tds - dT + dW < 0
Zero
One
Infinity
Negative
Reversible isothermal volume change
Heating of a substance
Cooling of a substance
Simultaneous heating and expansion of an ideal gas
P ∝ 1/V, when temperature is constant
P ∝ 1/V, when temperature & mass of the gas remain constant
P ∝ V, at constant temperature & mass of the gas
P/V = constant, for any gas
dQ = dE + dW
dQ = dE - dW
dE = dQ + dW
dW = dQ + dE
Reversible
Irreversible
Isothermal
Adiabatic
Freezing
Triple
Boiling
Boyle
Volume, mass and number of moles
Free energy, entropy and enthalpy
Both (A) and (B)
None of these
Gibbs-Duhem
Gibbs-Helmholtz
Maxwell's
None of these
Isobaric
Adiabatic
Isenthalpic
Both (B) & (C)
A real gas on expansion in vacuum gets heated up
An ideal gas on expansion in vacuum gets cooled
An ideal gas on expansion in vacuum gets heated up
A real gas on expansion in vacuum cools down whereas ideal gas remains unaffected
The same
Less than
Greater than
Different than
Decrease in velocity
Decrease in temperature
Decrease in kinetic energy
Energy spent in doing work
Specific volume
Temperature
Mass
Pressure
√(2KT/m)
√(3KT/m)
√(6KT/m)
3KT/m
A homogeneous solution (say of phenol water) is formed
Mutual solubility of the two liquids shows a decreasing trend
Two liquids are completely separated into two layers
None of these
Critical temperature
Melting point
Freezing point
Both (B) and (C)
300 × (32/7)
300 × (33/5)
300 × (333/7)
300 × (35/7)
Same in both the phases
Zero in both the phases
More in vapour phase
More in liquid phase