Quiz about Equilibrium quiz

Question 1

What are the units of concentration?

Accepted Answer

mol/L

Answer

mol/s

Answer

Liters

Answer

moles

Question 2

At equilibrium the seesaw will...

Accepted Answer

be level.

Answer

dip down on the left side.

Answer

dip down to the right.

Question 3

The following reaction, $$2KClO_3\ +\ heat\ \ \Longrightarrow\ \ 2KCl\ +\ 3O_2$$ can be classified as

Accepted Answer

endothermic

Answer

exothermic

Question 4

Which change listed below would shift the following reaction to the right?

$$4HCl\ \left(g\right)\ +\ O_2\ \left(g\right)\ \Longleftrightarrow\ 2Cl_2\ \left(g\right)\ +\ 2H_2O\ \left(g\right)$$

Accepted Answer

increase of pressure

Answer

decrease of pressure

Answer

addition of $$Cl_2$$

Answer

removal of $$O_2$$

Question 5

Which stress will force the reaction to the left?

$$C\ +\ O_2\ \Longleftrightarrow\ CO_2\ +\ heat$$

Accepted Answer

adding heat

Answer

removing heat

Answer

adding C

Answer

adding $$O_2$$

Question 6

Where is the transition state in the diagram below?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 7

Which way will the equilibrium shift if the pressure is increased?

$$CO_{2\ }+H_2O\ \Longleftrightarrow\ H_2CO_3$$

Accepted Answer

To the right

Answer

To the left

Answer

Stays the same

Question 8

What is the effect of adding more water to the following equilibrium reaction?

$$CO_2\ +\ H_2O\ \Longleftrightarrow\ H_2CO_3$$

Accepted Answer

More $$H_2CO_3$$ is produced.

Answer

The equilibrium is pushed in the direction of reactants.

Answer

$$CO_2$$ concentration increases

Answer

There is no effect.

Question 9

Which stress will force the reaction to the left?

$$C\ +\ O_2\ \Longleftrightarrow\ CO_2\ +\ heat$$

Accepted Answer

removing $$O_2$$

Answer

adding $$C$$

Answer

adding $$O_2$$

Answer

removing heat

Question 10

__ $$N_2O_4\ \left(g\right)\ \Longleftrightarrow\ _{ }$$ __ $$NO_2\left(g\right)$$

If the pressure is decreased which way will the equilibrium position shift?

Accepted Answer

right

Answer

left

Question 11

Choose all that apply: When the equilibrium shifts to the right for the following reaction, $$4HCl\ \left(g\right)\ +\ O_2\ \left(g\right)\ \Longleftrightarrow\ 2Cl_2\ \left(g\right)\ +\ 2H_2O\ \left(g\right)$$ , which substances will increase in concentration?

Accepted Answer

$$Cl_2\ \left(g\right)$$

Accepted Answer

$$H_2O\ \left(g\right)$$

Answer

$$HCl\ \left(g\right)$$

Answer

$$O_2\ \left(g\right)$$

Question 12

A catalyst will affect the equilibrium position for a reaction.

Accepted Answer

False

Answer

True

Equilibrium quiz

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