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4 cards from this section. Quick, good the night before a test.
What is an exothermic reaction?
Think about energy release.
What does a negative ΔH indicate?
Consider the heat flow direction.
What do exothermic reactions do?
Think about the energy flow.
True or False: A negative ΔH indicates an endothermic process.
Revisit the definition of ΔH signs.
A reaction releases 1500 J of heat. Is this reaction exothermic or endothermic? Justify your answer.
Recall the definitions of exothermic and endothermic reactions.
Consider the enthalpy change for the combustion of propane (C₃H₈). If 1 mole of propane releases 2044 kJ of heat, what is the ΔH for this reaction? Explain your reasoning.
Remember that energy released is indicated by a negative ΔH.
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