At elevated temperatures ammonium carbonate, NH 2 COONH 4 , is in equilibrium with NH 3 and CO 2 according to the equation; NH 2 COONH 4 ( s ) ↔ 2 NH 3 ( g ) + CO 2 ( g ) What is the equilibrium expression for this reaction?

K = 2 [NH 3 ][CO 2 ] [NH 2 COONH 4 ]

K = [NH 3 ] 2 [CO 2 ] [NH 2 COONH 4 ]

What is the equilibrium-constant expression for CO 2 (g) + H 2 (g) ↔ CO(g) + H 2 O(l)

K c = [CO][H 2 O] / [CO 2 ][H 2 ]

K c = [CO 2 ][H 2 ] / [CO][H 2 O]

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

Forward and reverse reaction rates are equal and concentration is constant

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

Forward and revers reaction rates are equal and concentration is equal

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

Which of the following is NOT true at equilibrium?

The concentration of the reactants is equal to the concentration of the products.

The forward and reverse reactions proceed at the same rate.

The concentrations of reactants and products do not change.

The forward and reverse reactions continue to occur.

Identify the labels (a) and (b) on the graph.

a is concentration of reactants and b is the concentration of product

a is concentration of product and b is the concentration of reactant

a is the volume of reactants and b is the volume of product

a the mass of reactants and b is the mass of product

Which of the following is the condition needed to establish the equilibrium?

Products and reactants should be in constant dynamic motion

All reactants and products should be in closed system

There are more products than reactants when the reaction reached equilibrium.

There are more reactant than products when the reaction reached equilibrium.

The amount of reactants is equal to the amount of products.

Chemical equilibrium

Authored by Sumathi Raja

Chemistry

11th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Such reactions which continue in both directions are called:

Irreversible reactions

Reversible reactions

Non-reactive reactions

dynamic reactions

Tags

NGSS.HS-PS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A complete reaction is in which:

All the reactants convert into products

All the reactants do not convert into products

Half reactants convert into products

only 10% reactants convert into products

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

shift equilibrium right

shift equilibrium left

decrease temperature

have no change

Tags

NGSS.HS-PS1-6

NGSS.HS-PS1-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

shift equilibrium right

shift equilibrium left

increase rate of reaction

have no change

Tags

NGSS.HS-PS1-6

NGSS.HS-PS1-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

At elevated temperatures ammonium carbonate, NH₂COONH₄, is in equilibrium with NH₃ and CO₂ according to the equation;
NH₂COONH₄(s) ↔ 2 NH₃(g) + CO₂(g)
What is the equilibrium expression for this reaction?

K = 2 [NH₃][CO₂]

[NH₂COONH₄]

K = [NH₃]²[CO₂]

[NH₂COONH₄]

K = 2 [NH₃][CO₂]

K = [NH₃]²[CO₂]

Tags

NGSS.HS-PS1-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

gaseous

liquid

solid

plasma

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equilibrium-constant expression for
CO₂(g) + H₂(g) ↔ CO(g) + H₂O(l)

K_c= [CO][H₂O] / [CO₂][H₂]

K_c= [CO₂][H₂] / [CO]

K_c= [CO₂][H₂] / [CO][H₂O]

K_c= [CO] / [CO₂][H₂]

Tags

NGSS.HS-PS1-6

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Chemical equilibrium

Such reactions which continue in both directions are called:

A complete reaction is in which:

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

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

At elevated temperatures ammonium carbonate, NH₂COONH₄, is in equilibrium with NH₃ and CO₂ according to the equation;
NH₂COONH₄(s) ↔ 2 NH₃(g) + CO₂(g)
What is the equilibrium expression for this reaction?

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

What is the equilibrium-constant expression for
CO₂(g) + H₂(g) ↔ CO(g) + H₂O(l)

This symbol indicates that a reaction is ____________

2SO₂(g)+O₂(g)⇌2SO₃(g)
Decreasing volume of container will

For the reaction...
heat + N₂ + O₂ ↔ 2NO
If the heat is added to the chemical system, the equilibrium will shift _______.

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Chemical equilibrium

Such reactions which continue in both directions are called:

A complete reaction is in which:

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

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

At elevated temperatures ammonium carbonate, NH2COONH4, is in equilibrium with NH3 and CO2 according to the equation;NH2COONH4(s) ↔ 2 NH3(g) + CO2(g)What is the equilibrium expression for this reaction?

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

What is the equilibrium-constant expression for CO2(g) + H2(g) ↔ CO(g) + H2O(l)

This symbol indicates that a reaction is ____________

2SO2(g)+O2(g)⇌2SO3(g)Decreasing volume of container will

For the reaction...heat + N2 + O2 ↔ 2NOIf the heat is added to the chemical system, the equilibrium will shift _______.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

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

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

At elevated temperatures ammonium carbonate, NH₂COONH₄, is in equilibrium with NH₃ and CO₂ according to the equation;
NH₂COONH₄(s) ↔ 2 NH₃(g) + CO₂(g)
What is the equilibrium expression for this reaction?

What is the equilibrium-constant expression for
CO₂(g) + H₂(g) ↔ CO(g) + H₂O(l)

2SO₂(g)+O₂(g)⇌2SO₃(g)
Decreasing volume of container will

For the reaction...
heat + N₂ + O₂ ↔ 2NO
If the heat is added to the chemical system, the equilibrium will shift _______.