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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is bond enthalpy?
💡 Hint: Remember it relates to the energy required for bond breaking.
Question 2
Easy
Is ΔH for an exothermic reaction positive or negative?
💡 Hint: Think about heat flow to the surroundings.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the bond enthalpy of a C≡C bond?
- 839 kJ
- 436 kJ
- 413 kJ
💡 Hint: Recall the bond enthalpy values discussed in class.
Question 2
An exothermic reaction results in a ΔH value that is:
- True
- False
💡 Hint: Think about energy transfer in reactions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Estimate the enthalpy change for the reaction: 2 H₂(g) + O₂(g) → 2 H₂O(g) using average bond enthalpies.
💡 Hint: Remember to list the bonds broken and formed separately.
Question 2
Explain the significance of bond enthalpies in real-world applications, such as fuel combustion.
💡 Hint: Think about how different fuels have different energy releases upon burning.
Challenge and get performance evaluation