Hydrogen gas and iodine gas are introduced into a flask, which is then sealed and allowed to reach dynamic chemical equilibrium.
The balanced equation is:
H2(g) + I2(g) ⇌ 2HI(g).
Which one of the graphs shows how the rates of the forward and reverse reactions change with time?
Required
1 point
1
Question 2
2.
Which of the following is true regarding the concentration of products, for a chemical system at equilibrium?
Required
1 point
1
Question 3
3.
For the following system at equilibrium, which statement is INCORRECT?
Required
1 point
1
Question 4
4.
Consider the amount (mol) vs. time graph for the closed system containing the gases of equation A at room temperature. The volume of the container is 1 dm3.
At which of the following time(s) is the the system NOT in equilibrium?
Required
1 point
1
Question 5
5.
A disturbance to temperature was made at 10 minutes. Which reaction was favoured?
Required
1 point
1
Question 6
6.
Therefore, considering your answer above, what temperature change was made at 10 minutes?
Required
1 point
1
Question 7
7.
Required
1 point
1
Question 8
8.
Given the following system at equilibrium:
The addition of Cl-Â ions will cause the concentration of Ag+(aq) to
Required
1 point
1
Question 9
9.
Given the following system at equilibrium:
Increasing the concentration of N2(g) will increase the forward reaction rate due to:
Required
1 point
1
Question 10
10.
Consider this system at equilibrium:
What colour could the gas mixture possibly be at equilibrium?
Required
1 point
1
Question 11
11.
Required
1 point
1
Question 12
12.
What disturbance was made at 8 minutes?
Required
1 point
1
Question 13
13.
What disturbance was made at 15 minutes?
Required
1 point
1
Question 14
14.
Which reaction was favoured at 15 minutes?
Required
1 point
1
Question 15
15.
Increasing the pressure in a gaseous system at equilibrium causes .....
Required
1 point
1
Question 16
16.
Consider the Haber reaction system at equilibrium.
What happens when pressure is decreased?
Required
1 point
1
Question 17
17.
Consider the following system in equilibrium.
Pressure is increased by reducing the volume of the container.
What does NOT happen as a result?
Required
1 point
1
Question 18
18.
Consider the following graph.
What is NOT a possible cause of the disturbance?
Required
1 point
1
Question 19
19.
Consider the following system at equilibrium which experienced a disturbance.
What was the disturbance?
Required
1 point
1
Question 20
20.
What is the equilibrium constant Kc expression for the following balanced equation?