Related Questions

The absolute entropy for all crystalline substances at absolute zero temperature is
A Zero
B Negative
C More than zero
D Indeterminate
For a perfect gas, according to Boyle’s law (where p = Absolute pressure, v = Volume and T = Absolute temperature)
A $$\frac{{\text{v}}}{{\text{T}}}$$ = constant, if p is kept constant
B pv = constant, if T is kept constant
C $$\frac{{\text{T}}}{{\text{p}}}$$ = constant, if v is kept constant
D $$\frac{{\text{p}}}{{\text{T}}}$$ = constant, if v is kept constant
The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.
A Isotactic
B Saturation
C Inversion
D Throttling
Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half, will result in __________ in the volume of the gas.
A No change
B Doubling
C $${\frac{{\text{L}}}{4}^{{\text{th}}}}$$ reduction
D Four fold increase
At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero. This follows from the
A Third law of thermodynamics
B Second law of thermodynamics
C Nernst heat theorem
D Maxwell's relations
The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas
A Remains unchanged
B Will be doubled
C Will increase four-fold
D Will be reduced to half
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)
A Ru × T
B 1.5 Ru × T
C 2 Ru × T
D 3 Ru × T
If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will
A Remain unaltered
B Increase nine fold
C Increase three fold
D Decrease three fold
The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).
A $$\sqrt {\text{T}} $$
B T
C T2
D $$\frac{1}{{\sqrt {\text{T}} }}$$
Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at
A High vacuum
B Zero pressure
C 0°K
D Earth

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