.
kg
of oxygen gas at two different
temperatures.
(a) What does the dotted plot signify?
(b) Which is true :
or 
?
(c)
What is the value of PV/T where the curves meet on the Y-axis?
(d)
H we obtained similar plots for 
of
hydrogen, would we get the same value of PV/Tat the point where the curves meet
on the y-axis ?If not. What mass of hydrogen yields the same value of PV/T (for
low pressure high temperature region of the plot) ? (Molecular mass of H = 
u, of 
u,
J 
.
Estimate the mass of oxygen taken out of the cylinder. (R =
J 
molecular
mass of 
= 32 u).
rises from
the bottom of a lake 40 m deep at a temperature of 12°C.To what volume does it
grow when it reaches the surface, which is at a temperature of 
? Given1atm.
).
the largest
u, of He =
u).
Compare the
collision time with the time the molecule moves freely between two successive
collisions, (Molecular mass of nitrogen 
The
diffusion of another gas under the same conditions is measured to have an
average rate of 
Identify
the gas.
where,
refer to
number density at heights h-^ and h^ respectively. Use this relation to derive
the equation for sedimentation equilibrium of a suspension in a liquid
column :
where,
p is the density of the suspended particle, and p' that of surrounding medium.
[
is
Avogadro's number, and R is the universal gas constant].
| Substance | Atomic Mass (u) |
Density 
|
| Carbon (diamond) |
|
|
| Gold |
|
|
| Nitrogen (Liquid) |
|
|
| Lithium |
|
|
| Fluorine (liquid) |
|
|
question_answer26)
Which
of die following diagrams Fig, depicts ideal gas behaviour?
(a)
(b) 
(c)
(d) 
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