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4 cards from this section. Quick, good the night before a test.
What does ΔH represent in a chemical reaction?
Think about energy content in the system.
What is an exothermic reaction?
It releases heat or light.
What does a negative ΔH indicate?
Think about what happens in exothermic reactions.
Is photosynthesis an endothermic process?
Consider energy absorption and food production.
If the enthalpy change of a reaction is -150 kJ, determine if the reaction is endothermic or exothermic. What are the implications for energy use?
Remember the sign of ΔH tells us the energy flow.
A chemical reaction has products with total energy of 240 kJ and reactants of 300 kJ. Calculate ΔH and classify the reaction. Discuss potential applications.
Look for the differences in energy levels for classification.
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