
U10 Keq and Le Chatelier's Principle
Authored by Michael Voss
Chemistry
9th - 10th Grade
NGSS covered
Used 118+ times

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27 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
At what time does the reaction reach equilibrium?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An equilibrium constant with a large value, e.g. K(eq) = 1000, indicates…
A very fast reaction
Mostly products at equilibrium
Mostly reactants at equilibrium
Nothing useful at all
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are [A] and [B]?
Tags
NGSS.HS-PS1-6
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the equilibrium expression for:
Fe3O4(s) + 4H2(g) <=> 3Fe(s) + 4H2O(g)
K(eq) =
[Fe]3 [H2O]4 / [Fe3O4] [H2]4
[Fe3O4] [H2]4 / [Fe]3 [H2O]4
[H2O]4 / [H2]4
[Fe] [H2O] / [Fe3O4] [H2]
Tags
NGSS.HS-PS1-6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the equilibrium constant is much greater than one (K >> 1) then
Tags
NGSS.HS-PS1-6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the equilibrium constant is much less than one (K << 1) then
Tags
NGSS.HS-PS1-6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
N2O4(g) ↔ 2 NO2(g)
What is the equilibrium constant expression?
K(eq) = [NO2]2/[N2O4]
K(eq) = [N2O4]/[NO2]2
K(eq) = [N2O4]2/[NO2]
K(eq) = [NO2]/[N2O4]2
Tags
NGSS.HS-PS1-6
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