Dynamic Equilibrium
Authored by Harold Covey
Chemistry
10th - 12th Grade
NGSS covered
Used 179+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At equilibrium, __________.
all chemical reactions have ceased
the rates of the forward and reverse reactions are equal
the rate constants of the forward and reverse reactions are equal
the value of the equilibrium constant is 1
) the limiting reagent has been consumed
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the system A + B C + D is at dynamic equilibrium
the sum of the concentrations of A and B must equal the sum of the concentrations of C and D.
,the forward reaction has stopped.
both the forward and the reverse reactions have stopped.
the reverse reaction has stopped
neither the forward nor the reverse reaction has stopped.
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This symbol indicates that a reaction is ___________
reversible
irreversible
Tags
NGSS.HS-PS1-6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2A + 3B <----> 2AB
The forward reaction forms the substance __________.
A
AB
B
A + B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the equation;
NH2COONH4(s) ↔ 2 NH3(g) + CO2(g)
What is the equilibrium expression for this reaction?
K = 2 [NH3][CO2]
[NH2COONH4]
K = [NH3]2[CO2]
[NH2COONH4]
K = 2 [NH3][CO2]
K = [NH3]2[CO2]
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equilibrium-constant expression for
CO2(g) + H2(g) ↔ CO(g) + H2O(g)
Kc= [CO][H2O] / [CO2][H2]
Kc= [CO][H2O] / [CO2][H2]
Kc= [CO2][H2] / [CO]
Kc= [CO] / [CO2][H2]
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the following equilibrium constants, Which of the following will produce the greatest amount of product.
6.2 x 10-10 M
2.5 x 10-5 M
1.1x105 M
1.2x 11 M
Tags
NGSS.HS-PS1-5
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