Law of Mass Action Concepts

Law of Mass Action Concepts

Assessment

Interactive Video

Chemistry

10th - 11th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial introduces the law of mass action, explaining its significance in determining the rate and equilibrium constants of chemical reactions. It defines the law, stating that the reaction rate is proportional to the product of the active masses of reactants, each raised to the power of their stoichiometric coefficients. An example is provided to illustrate the concept, emphasizing the role of reactant concentration in influencing reaction rates. The tutorial concludes with a discussion on the rate constant and a brief summary of the law's importance.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of the Law of Mass Action?

Measuring the volume of products

Calculating the temperature of a reaction

Understanding the rate and equilibrium constants

Determining the color of reactants

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the Law of Mass Action, the rate of a chemical reaction is proportional to what?

The product of the active masses of the reactants

The sum of the masses of the reactants

The volume of the reactants

The difference in temperature

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the Law of Mass Action, what is the significance of stoichiometric coefficients?

They indicate the temperature of the reaction

They are used to balance the chemical equation

They determine the color of the reaction

They are the powers to which the concentration terms are raised

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the given example, what do the small letters 'a' and 'b' represent?

The color of the products

The volume of the reactants

The stoichiometric coefficients of reactants A and B

The temperature of the reaction

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the rate of reaction expressed mathematically according to the Law of Mass Action?

As the sum of the concentrations of reactants

As the product of the concentrations of reactants raised to their stoichiometric coefficients

As the difference in concentrations of products and reactants

As the average concentration of reactants

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the rate constant 'K' in the Law of Mass Action?

It determines the color of the reaction

It indicates the volume of the reactants

It is a factor that relates the rate of reaction to the concentrations of reactants

It measures the temperature of the reaction

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the Law of Mass Action suggest about the concentration of reactants and the rate of reaction?

Higher concentration leads to a slower reaction rate

Concentration has no effect on reaction rate

Lower concentration leads to a faster reaction rate

Higher concentration leads to a faster reaction rate

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?