Effect of conditions on K Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which change alters the value of Kp for a reaction?
- A. Adding a catalyst
- B. Increasing the pressure
- C. Increasing the temperature
- D. Adding more reactant
2. A reaction is exothermic in the forward direction. What happens to K when the temperature is raised?
- A. K increases
- B. K decreases
- C. K is unchanged
- D. K doubles
3. For an endothermic reaction the temperature is raised. Which statement is correct?
- A. K decreases and the position shifts left
- B. K is unchanged and the position shifts right
- C. K increases and the position shifts left
- D. K increases and the position shifts right
4. For H₂(g) + I₂(g) ⇌ 2HI(g) the pressure is doubled at constant temperature. What happens to the position of equilibrium and to Kp?
- A. Both are unchanged
- B. The position shifts right and Kp increases
- C. The position shifts left and Kp decreases
- D. The position is unchanged and Kp doubles
5. Why does adding a catalyst not change Kc?
- A. It lowers the enthalpy change
- B. It increases the forward rate only
- C. It increases forward and reverse rates equally, so the position is unchanged
- D. It removes the product as it forms