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Test List
Name:
Equilibrium 1
Created By:
V. Gokal
Max Time:
4 mins
Select an option for each question and click Submit
1. The Kc for the following reaction is low.
X ↔ Y
It can be deduced that the _________ is low.
forward reaction rate
reverse reaction rate
[X] at equilibrium
[Y] at equilibrium
2. Consider the following equilibrium :
N
2
(g) + 3H
2
(g) ↔ 2NH
3
(g) ΔH = -92kJ
Which favours
less
NH
3
at a
greater rate
?
high T
low T
high P
low P
3. The following chemical equilibrium is established at a constant temperature in a closed container:
4NH
3
(g) + 5O
2
(g) ↔ 4NO(g) + 6H
2
O(g) (ΔH < 0) . Which set of conditions will both favour a reverse shift?
low P low T
low P high T
high P high T
high P low T
4. Study the ffg reaction which is in equilibrium.
NaNO
3
(s) ↔ Na
+
(aq) + NO
3
-
(aq)
A few drops of concentrated nitric acid added to the above equilibrium mixture. (Assume no significant change to V or T).
Which of the following best describes the possible change in the equilibrium?
reverse reaction favoured and [Na+][NO
3
-
] decreases
reverse reaction favoured and [Na+][NO
3
-
] remains constant
no equilibrium change and [Na+][NO
3
-
] remains constant
reverse reaction favoured and [Na+][NO
3
-
] remains constant
5. The Kc for a reaction at 300
0
C is 0,001. This means that the reaction:
reaction rate is very high
reaction rate is very low
reaction produces a low yield of products
reaction produces a high yield of products
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