Chemical Equilibrium Basics

Chemical Equilibrium Basics

11th Grade

15 Qs

quiz-placeholder

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Chemical Equilibrium Basics

Chemical Equilibrium Basics

Assessment

Quiz

Others

11th Grade

Medium

Created by

Adinew Alemayehu

Used 1+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main difference between heterogeneous and homogeneous equilibrium?

Heterogeneous equilibrium involves only reactants; homogeneous equilibrium involves only products.

Heterogeneous equilibrium occurs in closed systems; homogeneous equilibrium occurs in open systems.

In heterogeneous equilibrium, reactants and products are in different phases; in homogeneous equilibrium, all reactants and products are in the same phase.

In heterogeneous equilibrium, reactants and products are in the same phase; in homogeneous equilibrium, all reactants and products are in different phases.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Give an example of a heterogeneous equilibrium reaction.

The reaction: CaCO3(s) + CO2(g) ⇌ CaO(s) + CO2(g)

The reaction: H2(g) + I2(g) ⇌ 2HI(g)

The reaction: N2(g) + 3H2(g) ⇌ 2NH3(g)

The reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain why the equilibrium constant for a heterogeneous reaction may include only the concentrations of gases or liquids.

The concentrations of solids are highly variable and affect the equilibrium position significantly.

The concentrations of solids are constant and do not affect the equilibrium position.

The concentrations of gases are not involved in the reaction.

The equilibrium constant is not affected by the nature of the substances involved.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the presence of a catalyst affect the position of equilibrium in a homogeneous reaction?

A catalyst shifts the equilibrium to the left in a homogeneous reaction.

A catalyst increases the concentration of reactants at equilibrium in a homogeneous reaction.

A catalyst does not affect the position of equilibrium in a homogeneous reaction.

A catalyst decreases the rate of the reaction in a homogeneous reaction.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Discuss the role of temperature in shifting the equilibrium in a heterogeneous system.

Increasing temperature always shifts the equilibrium towards the reactants

Temperature has no impact on equilibrium in a heterogeneous system

Temperature affects the equilibrium by changing the rate of reactions and shifting it towards the endothermic or exothermic direction.

Temperature only affects homogeneous systems, not heterogeneous ones

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of pressure changes on a heterogeneous equilibrium?

Pressure changes increase the rate of reaction in a heterogeneous equilibrium.

Pressure changes shift the equilibrium towards the side with fewer moles of gas.

Pressure changes cause the equilibrium to completely shift to one side.

Pressure changes do not affect a heterogeneous equilibrium.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Describe how Le Chatelier's Principle applies to a homogeneous equilibrium.

Le Chatelier's Principle does not affect homogeneous equilibrium

In a homogeneous equilibrium, Le Chatelier's Principle always leads to a decrease in reactants

In a homogeneous equilibrium, Le Chatelier's Principle applies by shifting the equilibrium position in response to changes in concentration, pressure, or temperature.

Homogeneous equilibrium is not influenced by concentration, pressure, or temperature changes

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