Equilibrium Expression (Kc)

Equilibrium Expression (Kc)

10th Grade

50 Qs

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Equilibrium Expression (Kc)

Equilibrium Expression (Kc)

Assessment

Quiz

Science

10th Grade

Hard

NGSS
HS-PS1-7, HS-PS1-6, HS-PS1-5

+1

Standards-aligned

Created by

Melvin Flores

Used 10+ times

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50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
SO2 + O2  <=>  SO3
If the concentration of SOis increased, the equilibrium position of the reaction will shift ___________.

to the left
to the right
to the left and right 
neither left nor right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the Kc expression for this reaction?
   2 NO(g)  +  O2(g) ⇌  2 NO2(g)

K= [NO2]2 / [NO][O2]
K=  [NO][O2] / [NO2]2
K= [NO][O2] [NO2]2
K= [NO2]2 / [NO]2 +  [O2]

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are [A] and [B]?

concentration of reactants
concentration of products
energy of reactants
energy of products

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

N2O4(g) ↔ 2 NO2(g)
What is the concentration equilibrium constant expression?

K= [NO2]2/[N2O4]
K= [N2O4]/[NO2]2
K= [N2O4]2/[NO2]
K= [NO2]/[N2O4]2

5.

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)

[Br2]4  [CH4]/ [HBr]4  [CBr4]
[HBr]4 [CBr4]/ [Br2]4 [CH4]
[HBr ]/ [Br2]4 [CH4]
[HBr]4 [CBr4]/ [Br2]4 [CH]4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the reaction/equation for this Kc expression

2N2 + O2 ⇌ 2NO

N2 + O2 ⇌ NO

NO ⇌ 2NO

N2 + O2 ⇌ 2NO

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the equation/reaction for this Kc expression?

O3 ⇌ 3O2

2O3 ⇌ 3O2

2O3 ⇌ O2

3O2 ⇌ 2O3

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