Quiz 4: Chemical Equilibrium
Authored by Prapawee Prasomsri
Chemistry
11th Grade
Used 3+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is correct when a chemical system has reached equilibrium?
The forward and reverse reactions have stopped.
The rate of the forward reaction is greater than the rate of the reverse reaction.
The rate of the forward reaction is less than the rate of the reverse reaction.
The rate of the forward reaction is equal to the rate of the reverse reaction.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In order to write the equilibrium constant expression for a reaction, you must__________.
know the rate of the forward and reverse reactions.
know the concentrations of all reactants and products.
have the balanced chemical equation for the reaction.
know the conditions of pressure, temperature, and concentration for the system.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equilibrium constant expression for
CO2(g) + H2(g) ⇌ CO(g) + H2O(l)
Keq= [CO][H2O] / [CO2][H2]
Keq= [CO2][H2] / [CO]
Keq= [CO2][H2] / [CO][H2O]
Keq= [CO] / [CO2][H2]
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Consider the following reaction. What would be the equilibrium constant expression?
4Br2(g) + CH4(g) ⇌ 4HBr(g) + CBr4(g)
Keq = [Br2]4[CH4]/ [HBr]4[CBr4]
Keq = [HBr]4[CBr4]/ [Br2]4[CH4]
Keq = [HBr ]/ [Br2]4[CH4]
Keq = [HBr]4[CBr4]/ [Br2]4[CH]4
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Consider the following reaction at a specific temperature:
H2 (g) + Cl2 (g) ⇌ 2HCl (g)
If Keq= 2.3x10-5, [H2]= 0.0056 M, and [Cl2]= 0.0048 M, calculate the concentration of HCl.
- Report your answer with correct significant figures and with the correct units.
- Answers must be typed next to each other, without spaces.
- Using ' * ' for multiplication and using ^ for raised to the power. Example: 1.45*10^-5
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Consider the following reaction at a specific temperature:
CO (g) + 3H2 (g) ⇌ CH4 (g) + 3H2O (g)
If [CO] = 4.0 M. [H2] = 2.8 M, [CH4] = 0.75 M, and [H2O] = 0.12M, calculate the value of the equilibrium constant.
- Report your answer with correct significant figures.
- Answers must be typed next to each other, without spaces.
- Using ' * ' for multiplication and using ^ for raised to the power. Example: 1.45*10^-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of equilibrium does the reaction below show?
H2 (g) +I2 (g) ⇌ 2HI (g)
Heterogeneous equilibrium, all the reactants and products are in the same physical state.
Heterogeneous equilibrium, the reactants and products are present in more than one physical state.
Homogeneous equilibrium, all the reactants and products are in the same physical state.
Homogeneous equilibrium, the reactants and products are present in more than one physical state
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
