Le Chatelier's Principle

Le Chatelier's Principle

10th Grade

15 Qs

quiz-placeholder

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15 Qs

Le Chatelier's Principle

Le Chatelier's Principle

Assessment

Quiz

Science

10th Grade

Medium

NGSS
HS-PS1-6, HS-PS1-5, HS-PS1-4

Standards-aligned

Created by

Jacqueline Tettey-Lokko

Used 235+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Why is equilibrium called a dynamic state?

Chemists try to convert as much reactants as possible into products.
The reactions at equilibrium continue to take place once equilibrium is established.
The products of a forward reaction are favored, so equilibrium lies to the right.
All chemical reactions are considered to be reversible under suitable conditions.

Tags

NGSS.HS-PS1-6

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

At what time (in seconds) is equilibrium established?

0 seconds
1 second
5 seconds
10 seconds

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Le Chaltelier's Principle states that if a chemical system at equilibrium is stressed,

the system will adjust to increase the stress
the system will adjust to reduce the stress
the system will not adjust

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When writing an endothermic reaction, heat energy is stated as

product
catalyst
reactant

Tags

NGSS.HS-PS1-4

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

An exothermic reaction is allowed to reach equilibrium. If heat energy is then removed, the equilibrium will shift

toward the middle
toward the reactant side
toward the product side

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following is NOT true at equilibrium?

The forward and reverse reactions proceed at the same rate.
The concentrations of reactants and products do not change.
The concentration of the reactants is equal to the concentration of the products.
The forward and reverse reactions continue to occur.

Tags

NGSS.HS-PS1-6

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

For the reaction...
SO2(g) + O2(g) <−>  SO3(g)
If the concentration of 
SO2(g)  is increased, the equilibrium of the reaction will ___________.

shift to the left
shift to the right
not shift

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

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