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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is bond enthalpy?
💡 Hint: Think of it as the energy needed to 'unzip' a bond.
Question 2
Easy
Determine if the combustion of propane is exothermic or endothermic.
💡 Hint: Does the reaction give off heat or absorb it?
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 bond enthalpy?
- Energy needed to break a bond
- Energy needed to form a bond
- Both A and B
- None of the above
💡 Hint: Think about what you have to do to separate two atoms in a bond.
Question 2
Is ΔH positive for exothermic reactions?
- True
- False
💡 Hint: Remember the relationship between heat flow and reaction types.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Using bond enthalpies, estimate the ΔH for the reaction N₂ + 3 H₂ → 2 NH₃.
💡 Hint: List all bonds in the reactants and products and use the enthalpy equation.
Question 2
Discuss how varying temperature might affect bond enthalpy measurements.
💡 Hint: Consider how heat affects molecular interactions.
Challenge and get performance evaluation