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Standard XII
Chemistry
Silica
ntthe Vrms of...
Question
ntthe Vrms of hydrogen molecule at a given temprature is 300m/sec. if temperature is doubled and hydrogen gas dissociates into atomic hydrogen then Vrms =n
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Q.
The r.m.s speed of hydrogen gas molecules at a certain temperature is
200
m
s
−
1
. If the absolute temperature of the gas is doubled and the hydrogen gas dissociates into atomic hydrogen, then the r.m.s speed will become
Q.
Given molecular weight of hydrogen molecule is
M
=
2.016
×
10
−
3
k
g
/
m
o
l
. If the root-mean-square speed of hydrogen molecules
(
H
2
)
at
373.15
K
(
100
∘
C
)
is
v
r
m
s
=
x
+
210
100
k
m
/
s
. Find
x
.
Q.
An ideal gas molecule is present at 27
∘
C
. By how many degree centigrade its temperature should be raised so that its
V
rms
,
V
mp
and
V
av
all may double?
Q.
If
¯
¯
¯
v
,
v
r
m
s
and
v
p
represent the mean speed, root mean square and most probable speed of the molecules in an ideal monoatomic gas at temperature
T
and if
m
is mass of the molecule, then
Q.
The temperature of an ideal gas is increased from
120
K to
480
K. If at
120
K, the rms velocity of the gas molecules is
v
r
m
s
, then at
480
K, it becomes.
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