Comparing Reaction Quotients and Equilibrium

Comparing Reaction Quotients and Equilibrium

Assessment

Interactive Video

Chemistry, Science, Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the concept of chemical equilibrium and how to determine if a reaction is at equilibrium using the reaction quotient (Q) and the equilibrium constant (KQ). It discusses how to predict the direction of a reaction based on the comparison of Q and KQ, using analogies and practical examples to illustrate the concepts. The tutorial also covers how to calculate Q and interpret its value to understand the reaction's progress towards equilibrium.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of KQ in a chemical reaction?

It determines the speed of the reaction.

It indicates the reaction's equilibrium position.

It measures the temperature of the reaction.

It shows the amount of reactants used.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is Q different from KQ in terms of reaction conditions?

Q is calculated at equilibrium, while KQ is not.

Q measures temperature, while KQ measures pressure.

Q is always larger than KQ.

Q is determined using initial concentrations, while KQ uses equilibrium concentrations.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if Q is larger than KQ?

The reaction shifts to the left.

The reaction stops completely.

The reaction remains unchanged.

The reaction shifts to the right.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the analogy of a number line, what does a 'big Q' indicate?

The reaction is too slow.

The reaction is at equilibrium.

The reaction needs to shift left to reach equilibrium.

The reaction needs to shift right to reach equilibrium.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in calculating Q for a reaction?

Identify the equilibrium constant KQ.

Use the initial concentrations of reactants and products.

Measure the pressure of the system.

Determine the temperature of the reaction.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example provided, what was the calculated value of Q?

1.7 * 10^4

7.1 * 10^3

2,682

4.29

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a 'tiny Q' suggest about the direction of the reaction shift?

The reaction is at equilibrium.

The reaction will stop.

The reaction will shift to the left.

The reaction will shift to the right.

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?