Free Printable Chemistry Equilibrium

Worksheets

Chemistry Equilibrium

Total questions: 13

Worksheet time: 10mins

Name

Class

Date

Changes in pressure will only affect substances that are in the __________ state.

gaseous

liquid

solid

plasma

What are the two factors to look for when determining if the reaction is at equilibrium?

Forward reaction rate is faster than the reverse and concentrations are equal

Forward and reverse reaction rates are equal and concentration is constant

Forward and revers reaction rates are equal and concentration is equal

Forward reaction rate is faster than the reverse and concentration is equal

This symbol indicates that a reaction is ____________

reversible

irreversible

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

Chemical Equilibrium

Chemical Balance

Stoichiometry

Chemical Reaction

For the reaction...

SO₂ + O₂ ⇌ SO₃

If the concentration of SO₂is increased, the equilibrium of the reaction will shift ___________.

left

right

left and right

neither left nor right

For the reaction...

N_{2 (g)}+ 3 H_2(g) ⇌ 2 NH_{3 (g)}

If the pressure in the system is increased, which substance(s) will increase in concentration?

N₂

H₂

N₂ and H₂

NH₃

What is the effect of increasing the pressure on the following equilibrium: 2NO(g) + O₂ (g) ⇌2NO₂(g)?

The yield of NO₂ increases

The yield of NO₂ decreases

The reaction is slower

The concentration of O₂ increases.

2SO₂(g)+O₂(g)⇌2SO₃(g)
Removing O₂(g) will

shift equilibrium right

shift equilibrium left

increase pressure

have no change

2SO₂(g)+O₂(g)⇌2SO₃(g)

Adding SO₃(g) will

shift equilibrium right

shift equilibrium left

increase K

have no change

10.

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.

11.

H₂(g)+Cl₂(g)⇌2HCl(g)

Removing Cl₂(g) will

shift equilibrium right

shift equilibrium left

increase pressure

have no change

12.

H₂(g)+Cl₂(g)⇌2HCl(g)

Increasing the pressure will

shift equilibrium right

shift equilibrium left

You cannot predict the effect

have no change

13.

H₂(g)+Cl₂(g)⇌2HCl(g)

The forward reaction is exothermic. What will happen to the equilibrium if the temperature is increased?

equilibrium shifts right

equilibrium shifts left

You cannot predict the effect

no change

100 %

Chemistry Equilibrium

Total questions: 13

Worksheet time: 10mins

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