Practice - Calculating Enthalpy Change
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Practice Questions
Test your understanding with targeted questions
What is the formula for calculating enthalpy change?
💡 Hint: Think about how you find the difference between the two energies.
Is an exothermic reaction associated with a positive or negative ΔH?
💡 Hint: Recall which type of reaction releases energy.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does a negative ΔH signify?
💡 Hint: Think of the implications of energy flow.
Which equation correctly expresses enthalpy change for a reaction?
💡 Hint: Look for the structure of the formula!
1 more question available
Challenge Problems
Push your limits with advanced challenges
If a reaction shows a ΔH of -75 kJ, what can you conclude about the energy exchange, and how would you categorize the reaction?
💡 Hint: Reflect on the meaning of a negative ΔH.
Given a total energy of reactants at 120 kJ and products at 50 kJ, calculate ΔH and classify the reaction.
💡 Hint: Use the formula and remember the classification rules.
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