Equilibrium Reactions and Constants

The video tutorial guides viewers through calculating equilibrium concentrations for a chemical reaction involving nitrogen, hydrogen, and ammonia. It begins by setting up the problem and introducing the equilibrium constant. The tutorial then explains how to formulate the equilibrium constant expression using stoichiometric coefficients. Finally, it demonstrates the calculation of ammonia concentration at equilibrium using given values and arithmetic operations.

What is the chemical equation for the equilibrium reaction discussed in the video?

• N2 + 3H2 ⇌ 2NH3

• 2N2 + 6H2 ⇌ 4NH3

• N2 + H2 ⇌ NH3

• 3N2 + 9H2 ⇌ 6NH3

What is the equilibrium constant value for the reaction?

• 0.6000

• 0.0600

• 6.000

• 0.0060

How is the equilibrium constant expression set up for this reaction?

• Reactants over products, without any exponents

• Products over reactants, each raised to their stoichiometric coefficients

• Reactants over products, each raised to their stoichiometric coefficients

• Products over reactants, without any exponents

What is the stoichiometric coefficient of hydrogen in the equilibrium expression?

• 2

• 4

• 1

• 3

Which value is substituted for the nitrogen concentration in the equilibrium expression?

• 0.0600 M

• 1.53 M

• 2.09 M

• 4.26 M

What is the concentration of hydrogen used in the calculation?

• 0.0600 M

• 1.53 M

• 2.09 M

• 4.26 M

What is the calculated value of ammonia concentration squared?

• 0.0600

• 4.26

• 1.53

• 2.33

What is the final equilibrium concentration of NH3?

• 4.26 M

• 2.09 M

• 2.33 M

• 1.53 M