Practice Kp: Equilibrium Constant in Terms of Partial Pressures - 7.1.3 | Unit 7: Equilibrium | IB Grade 11: Chemistry
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Practice Questions

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Question 1

Easy

What does Kp stand for?

💡 Hint: Think about how gas concentrations are important in equilibrium.

Question 2

Easy

Define partial pressure.

💡 Hint: Consider how gases interact in a mixture.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is Kp used for in gas-phase reactions?

  • To determine rates
  • To determine equilibrium positions
  • To measure concentrations

💡 Hint: Think about what Kp represents.

Question 2

True or False: Kp and Kc are identical for all reactions.

  • True
  • False

💡 Hint: Kp is specifically for gases, while Kc involves concentrations.

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Challenge Problems

Push your limits with challenges.

Question 1

A gas phase reaction has an initial concentration of reactants with Kc = 0.25 at 350K. Given that Δn = -1, calculate Kp and discuss how the pressures might vary if temperature increases to 400K.

💡 Hint: Pay attention to how Δn influences adjustments in equilibrium.

Question 2

Given the reaction 2 NO(g) + O₂(g) ⇌ 2 NO₂(g) with Kp at 298K found to be 2.0. If the reaction occurs at higher temperatures, assess expected shifts in Kp and the implications for industrial production.

💡 Hint: Reflect on the role of exothermic reactions in temperature dynamics.

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