We’re being asked to classify each statement as exothermic or endothermic.
• Exothermic reactions: lose energy and involve bonds breaking; ΔH is negative
• Endothermic reactions: gain energy and involve bonds forming; ΔH is positive
For a given process at constant pressure, H is positive. Is the process endothermic or exothermic?
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What scientific concept do you need to know in order to solve this problem?
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