Kc values - Calculation

Kc values - Calculation

Assessment

Interactive Video

Chemistry, Science, Physics

10th Grade - University

Hard

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The video tutorial explains how to derive the equilibrium constant (KC) for an overall reaction by combining two reversible reactions with their respective equilibrium constants, KC1 and KC2. It demonstrates that the overall KC value is the product of KC1 and KC2. The tutorial applies this rule to specific reactions, showing the calculation of the overall KC value, KC3, by multiplying KC1 and KC2, and confirms the result through cancellation of common terms.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying the equilibrium constants KC1 and KC2?

The equilibrium constant of a single reaction

The sum of the concentrations of reactants

The difference between KC1 and KC2

The overall equilibrium constant KC

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the given example, what is the value of KC1?

4

1.28 into 10 to the power of 4

2

3.2 into 10 to the power of 4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equilibrium constant KC2 in the example provided?

2.5

3.2 into 10 to the power of 4

1.28 into 10 to the power of 4

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the overall equilibrium constant KC3 calculated in the example?

By adding KC1 and KC2

By subtracting KC2 from KC1

By multiplying KC1 and KC2

By dividing KC1 by KC2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final calculated value of KC3 in the example?

4

3.2 into 10 to the power of 4

1.28 into 10 to the power of 4

2.5