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Byju's Answer
Standard XII
Chemistry
Ideal Gas Equation
The pressure ...
Question
The pressure exerted by
6.0
g
of methane gas in
a
0.03
m
3
vessel at
129
∘
C
is :
(Atomic masses :
C
=
12.01
,
H
=
1.01
and
R
=
8.314
J
K
−
1
m
o
l
−
1
)
A
215216
P
a
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B
13409
P
a
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C
41648
P
a
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D
31684
P
a
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Solution
The correct option is
B
41648
P
a
w
(given mass of methane)
=
6
g
T
e
m
p
e
r
a
t
u
r
e
,
T
=
129
+
273
=
402
K
Molar mass of methane
,
M
=
12.01
+
4
×
1.01
=
16.05
g
From, ideal gas equation,
p
V
=
n
R
T
⇒
P
=
n
R
T
v
p
=
6
16.05
×
8.314
×
402
0.03
=
41648
P
a
Hence, the correct option is C.
Suggest Corrections
2
Similar questions
Q.
The pressure exerted by 6.0g of methane gas in a 0.03 m
3
vessel at 129
o
C is (Atomic masses : C = 12.01 H = 1.01 and R = 8.314 J K
−
1
mol
−
1
) :
Q.
The pressure exerted by
6.0
g
of methane gas in a
0.03
m
3
vessel at
129
∘
C
is
(
Atomic masses :
C
=
12.01
,
H
=
1.01
and
R
=
8.314
JK
−
1
mol
−
1
)
Q.
What will be the pressure exerted by a mixture of
3.2
g
of methane and
4.4
g
of carbon dioxide contained in a
9
dm
3
flask at
27
∘
C
?
(Given :
R
=
8.314
J K
−
1
mol
−
1
)
Q.
The pressure exerted by a non- reactive gaseous mixture of
6.4
g
of methane and
8.8
g
of carbon dioxide in a
10
L
vessel at
27
∘
C is ____
k
P
a
(Round off to the Nearest Integer).
[Assume gases are ideal,
R
=
8.314
J
m
o
l
−
1
K
−
1
Atomic masses :
C
=
12.0
u
,
H
:
1.0
u
,
O
:
16.0
u
]
Q.
What is the pressure of
H
C
l
gas at
−
40
∘
C
if its density is
8.0
k
g
m
−
3
?
(
R
=
8.314
J
K
−
1
m
o
l
−
1
)
.
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