1.2.2.4 - Standard Enthalpy of Reaction (ΔH_rxn°)
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Practice Questions
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What is the standard enthalpy of formation (ΔH_f°)?
💡 Hint: Think about the formation process from elements.
How do you determine if a reaction is exothermic?
💡 Hint: Recall the sign of ΔH for reactions that release heat.
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Interactive Quizzes
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What is ΔH_rxn°?
💡 Hint: Recall that ΔH is associated with pressure changes.
True or False: A negative value for ΔH indicates that the reaction is endothermic.
💡 Hint: Think about how heat is exchanged in reactions.
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Challenge Problems
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Given the reaction: C(s) + O₂(g) → CO₂(g) with known ΔH_f° values, calculate the standard enthalpy change.
💡 Hint: You will need to reference enthalpy values for each reactant and product.
Evaluate the ΔH of a reaction where ΔH_f° for reactants and products are provided in a table.
💡 Hint: The key operation here is maintaining focus on stoichiometry.
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