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?

NH 3 (as 4 mol gas → 2 mol gas)

N 2 (as 2 mol gas → 4 mol gas)

H 2 (as 2 mol gas → 4 mol gas)

N 2 and H 2 (as 2 mol gas → 4 mol gas)

What is the K c expression for this reaction? 2 NO (g) + O 2(g) ⇌ 2 NO 2(g)

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

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

K c = [NO 2 ] 2 / [NO] 2 + [O 2 ]

An equilibrium constant with a large value, e.g. K c = 1000, indicates…

Mostly reactants at equilibrium

Given: 2A(g) <=> 2B(g) + C(g). At a particular temperature, K c = 16000. Raising the pressure, by decreasing the volume of the container, will...

have no effect on the value of K c as temperature does not change

cause the value of K c to increase

cause the value of K c to decrease

In an exo thermic reaction energy is transferred from

reactants to their surroundings

What is the equilibrium expression for: Fe 3 O 4 ( s ) + 4H 2 (g) <=> 3Fe( s ) + 4H 2 O(g) K c =

[Fe] 3 [H 2 O] 4 / [Fe 3 O 4 ] [H 2 ] 4

[Fe 3 O 4 ] [H 2 ] 4 / [Fe] 3 [H 2 O] 4

[Fe] [H 2 O] / [Fe 3 O 4 ] [H 2 ]

For the reaction... H 2 (g) + Cl 2 (g) <=> 2HCl (g) + heat If the pressure in the system is increased , the equilibrium position will _______.

not shift position at all as 2 mol gas <=> 2 mol gas

Equilibrium

Quiz

•

Chemistry

•

11th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

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

+1

Standards-aligned

Jo Standley

Used 2K+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This symbol indicates that a reaction is ____________

reversible

irreversible

Tags

NGSS.HS-PS1-6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the reactant - and why?

A, as concentration decreases

B, as concentration decreases

A, as concentration increases

B, as concentration increases

Tags

NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

When the system X + 2 Y <=> Z has reached equilibrium, which of the following is TRUE?

Forward reaction and Backward reaction stop.

Forward reaction has sped up and backward reaction has slowed down.

Forward and backward reactions occur at the same rate.

Forward reaction has slowed down and backward reaction has sped up.

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what time the reaction reached equilibrium?

t₁

t₂

t₃

t₄

Tags

NGSS.HS-PS1-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
SO₂ + O₂ <=> SO₃
If the concentration of SO₂is 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

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
SO₂ + O₂ <=> SO₃If the equilibrium position shifts to the right, the concentration of O₂ will ___________.

increase

decrease

remain the same

double

Tags

NGSS.HS-PS1-6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
N₂ + O₂ <=> 2NO
If O₂ 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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Equilibrium

20 questions

This symbol indicates that a reaction is ____________

Which is the reactant - and why?

When the system X + 2 Y <=> Z has reached equilibrium, which of the following is TRUE?

At what time the reaction reached equilibrium?

For the reaction...
SO₂ + O₂ <=> SO₃
If the concentration of SO₂is increased, the equilibrium position of the reaction will shift ___________.

For the reaction...
SO₂ + O₂ <=> SO₃If the equilibrium position shifts to the right, the concentration of O₂ will ___________.

For the reaction...
N₂ + O₂ <=> 2NO
If O₂ is removed, the concentration of N₂ will _______.

For the reaction...
N_{2 (g)}+ 3 H₂ _(g) <=> 2 NH_{3 (g)}
If the pressure in the system is increased, which substance(s) will increase in concentration?

For the reaction...
N₂ + O₂ <=> 2NO: Δ H = +182 kJ mol^-1.
If the temperature is increased the equilibrium position will shift _______.

What is the K_c expression for this reaction?
2 NO_(g) + O_2(g) ⇌ 2 NO_2(g)

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Equilibrium

20 questions

This symbol indicates that a reaction is ____________

Which is the reactant - and why?

When the system X + 2 Y <=> Z has reached equilibrium, which of the following is TRUE?

At what time the reaction reached equilibrium?

For the reaction...SO2 + O2 <=> SO3If the concentration of SO2 is increased, the equilibrium position of the reaction will shift ___________.

For the reaction...SO2 + O2 <=> SO3If the equilibrium position shifts to the right, the concentration of O2 will ___________.

For the reaction...N2 + O2 <=> 2NOIf O2 is removed, the concentration of N2 will _______.

For the reaction...N2 (g) + 3 H2 (g) <=> 2 NH3 (g)If the pressure in the system is increased, which substance(s) will increase in concentration?

For the reaction...N2 + O2 <=> 2NO: Δ H = +182 kJ mol-1.If the temperature is increased the equilibrium position will shift _______.

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

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Discover more resources for Chemistry

For the reaction...
SO₂ + O₂ <=> SO₃
If the concentration of SO₂is increased, the equilibrium position of the reaction will shift ___________.

For the reaction...
SO₂ + O₂ <=> SO₃If the equilibrium position shifts to the right, the concentration of O₂ will ___________.

For the reaction...
N₂ + O₂ <=> 2NO
If O₂ is removed, the concentration of N₂ will _______.

For the reaction...
N_{2 (g)}+ 3 H₂ _(g) <=> 2 NH_{3 (g)}
If the pressure in the system is increased, which substance(s) will increase in concentration?

For the reaction...
N₂ + O₂ <=> 2NO: Δ H = +182 kJ mol^-1.
If the temperature is increased the equilibrium position will shift _______.

What is the K_c expression for this reaction?
2 NO_(g) + O_2(g) ⇌ 2 NO_2(g)