The scientist 'Q' was experimenting to revive a giant called the Mountain. He accidentally dropped a vial of ammonia on the round. He saw gammonia react with oxygen and procuce No and water. Let's say the rate ofllformation of NO is 3.6 x 10-3 M/s Calculate • The rate of disappearance of ammonia • Rate of formation of water
Answers
Explanation:
Calculate
The rate of disappearance of ammonia
Rate of formation of water
A. 3.6 x 10-3
M
s
−
1
and 3.6 x 10-3
M
s
−
1
B. 9 x 10-3
M
s
−
1
and 5.4 x 10-3
M
s
−
1
C. 7.2 x 10-3
M
s
−
1
and 3.6 x 10-3
M
s
−
1
D. 3.6 x 10-3
M
s
−
1
and 5.4 x 10-3
M
s
−
1
Please scroll down to see the correct answer and solution guide.
Right Answer is: D
SOLUTION
The reaction goes as follows:
4
N
H
3
+
5
O
2
→
4
N
O
+
6
H
2
O
From this we can write the rate equation as follows
R
=
−
1
4
Δ
[
NH
3
]
Δ
t
=
−
1
5
Δ
[
O
2
]
Δ
t
=
1
4
Δ
[
NO
]
Δ
t
=
1
6
Δ
[
H
2
O
]
Δ
t
Let us try to get the terms we need.
We are given,
Δ
[
NO
]
Δ
t
which is the rate for formation of NO. We need the rate of disapperance of ammonia.
We know that
Δ
[
NO
]
Δ
t
=
−
Δ
[
NH
3
]
Δ
t
⇒
Δ
[
NH
3
]
Δ
t
=
3
.
6
x
10
−
3
M
/
s
Similarly,
Δ
[
H
2
O
]
Δ
t
=
6
4
Δ
[
NH
3
]
Δ
t
=
3
2
Δ
[
NH
3
]
Δ
t
=
5
.
4
x
10
−
3
M
/
s
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