What is the proper K eq for the following reaction? 2 NO (g) + O 2(g) ⇌ 2 NO 2(g)

K eq = [NO 2 ] 2 / [NO] 2 [O 2 ]

K eq = [NO] 2 [O 2 ] / [NO 2 ] 2

2S O 2 (g) + O 2 (g) ⇌2S O 3 (g) is an exothermic reaction. an in Increase temperature will...

shift equilibrium toward the left

shift equilibrium toward the right

Which is NOT a way to stress a closed chemical system at equilibrium?

take away a chemical in the reaction

When a catalyst is added to a system at equilibrium, which statement is NOT true?

the rate of the forward reaction increases

the rate of the reverse reaction increases

If I add a chemical to a system at equilibrium, increasing its concentration,

the reaction will shift to the opposite side of the equation where it appears to use some of it up

the reaction will shift to the same side of the equation where it appears to make more of it

byproducts (other unwanted chemicals) will be formed to use the excess

Increasing the pressure on an equilibrium system will

shift the reaction to the side with fewer moles of gas

shift the reaction to the side with more moles of chemicals

shift the reaction to the side with more moles of gas

shift the reaction to the side with fewer moles of chemicals

Increasing the temperature of a closed equilibrium system

will shift the reaction in the endothermic direction

will shift the reaction in the exothermic direction

will shift the reaction to the side with heat

If I add reactants only to a reaction container,

the reaction can only shift right to make products

the reaction can olny shift left to make reactants

all of the reactants will be used up

For the reaction below, (metane gas reacting with dihydrogen sulfide) which change would cause the equilibrium to shift to the right? CH 4(g) + 2H 2 S (g) ↔ CS 2(g) + 4H 2(g)

Increase the temperature of the system.

Decrease the concentration of dihydrogen sulfide.

Increase the pressure on the system.

Increase the concentration of carbon disulfide.

Decrease the concentration of methane.

Consider the following reaction: Fe +3 + SCN ↔ FeSCN 2+ (Light Yellow) (Deep Red) Adding AgNO 3 to the test tube removed SCN - from the reaction, causing the reaction to

produce more reactants and decrease the amount of products.

decrease the amount of products causing a deeper color.

produce a deeper red color because the production of more reactants.

Consider the following reaction: Fe +3 + SCN ↔ FeSCN 2+ (Light Yellow) (Deep Red) The reaction you studied is became a deeper red color when placed in an ice bath. This means that the reaction is

There is not enough information given to answer the qusestion.

In the reaction N 2 O 4 (g) ↔ 2 NO 2 (g) , an increase in pressure (by reducing the volume) would make the reaction

Increasing the reaction would have no effect on the equilibrium.

There is not enough information given to answer the question.

In the reaction, CO (g) + NO 2 (g) ↔ CO 2 (g) + NO (g) , which of the following changes would result in the formation of more products at equilibrium?

adding NO 2 (g) to the reaction

removing CO (g) from the reaction

None of the options would result in more products.

Le Chatelier's Principle

11th Grade

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Le Chatelier's Principle

Quiz

•

Chemistry

•

11th Grade

•

Practice Problem

•

Medium

•

NGSS

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

Standards-aligned

Sally Glennon

Used 3+ times

FREE Resource

30 questions

Show all answers

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

At what time (in seconds) is equilibrium established?

0 seconds

1 second

5 seconds

10 seconds

Tags

NGSS.HS-PS1-5

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

Tags

NGSS.HS-PS1-6

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

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

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

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

For the reaction...
SO_2(g) + O_2(g) <−> SO_3(g)
If the concentration of SO_2(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

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

For the reaction...
SO_2(g) + O_2(g) <−> SO_3(g)
If the equilibrium shifts to the right, the concentration of O_2(g) will ___________.

increase

decrease

remain the same

Tags

NGSS.HS-PS1-6

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

For the reaction...
energy + N_2(g) + O_2(g) <−> 2NO_(g)
If O_2(g) is removed, the concentration of N₂ will _______.

increase

decrease

remain the same

double

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

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Le Chatelier's Principle

30 questions

At what time (in seconds) is equilibrium established?

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

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

Which of the following is NOT true at equilibrium?

For the reaction...
SO_2(g) + O_2(g) <−> SO_3(g)
If the concentration of SO_2(g)is increased, the equilibrium of the reaction will ___________.

For the reaction...
SO_2(g) + O_2(g) <−> SO_3(g)
If the equilibrium shifts to the right, the concentration of O_2(g) will ___________.

For the reaction...
energy + N_2(g) + O_2(g) <−> 2NO_(g)
If O_2(g) is removed, the concentration of N₂ will _______.

For the reaction...
heat + N_2(g) + O_2(g) <−> 2NO_(g)
If the heat is removed to the chemical system, the equilibrium will _______.

For the reaction...
N_{2 (g)}+ 3 H₂ _(g) <−> 2 NH_{3 (g)}
If the pressure in the system is increased, the reaction will __________________.

When ΔH is negative it represents a(n)

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Le Chatelier's Principle

30 questions

At what time (in seconds) is equilibrium established?

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

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

Which of the following is NOT true at equilibrium?

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

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

For the reaction...energy + N2(g) + O2(g) <−> 2NO(g)If O2(g) is removed, the concentration of N2 will _______.

For the reaction...heat + N2(g) + O2(g) <−> 2NO(g)If the heat is removed to the chemical system, the equilibrium will _______.

For the reaction...N2 (g) + 3 H2 (g) <−> 2 NH3 (g)If the pressure in the system is increased, the reaction will __________________.

When ΔH is negative it represents a(n)

Access all questions and much more by creating a free account

Similar Resources on Wayground

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Discover more resources for Chemistry

For the reaction...
SO_2(g) + O_2(g) <−> SO_3(g)
If the concentration of SO_2(g)is increased, the equilibrium of the reaction will ___________.

For the reaction...
SO_2(g) + O_2(g) <−> SO_3(g)
If the equilibrium shifts to the right, the concentration of O_2(g) will ___________.

For the reaction...
energy + N_2(g) + O_2(g) <−> 2NO_(g)
If O_2(g) is removed, the concentration of N₂ will _______.

For the reaction...
heat + N_2(g) + O_2(g) <−> 2NO_(g)
If the heat is removed to the chemical system, the equilibrium will _______.

For the reaction...
N_{2 (g)}+ 3 H₂ _(g) <−> 2 NH_{3 (g)}
If the pressure in the system is increased, the reaction will __________________.