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AQA Chemistry A Level – Energetics Exam questions and answers Graded A+ latest update Exothermic - Energy is transferred to the surroundings, making a bond e.g. combustion Endothermic - Energy is taken from the surroundings, breaking a bond e.g. phot
Preview 2 out of 9 pages
AQA Chemistry A Level – Energetics Exam questions and answers Graded A+ latest update Exothermic - Energy is transferred to the surroundings, making a bond e.g. combustion Endothermic - Energy is taken from the surroundings, breaking a bond e.g. photosynthesis Enthalpy Change (ΔH) - The heat energy change measured under conditions of constant pressure enthalpy of products - enthalpy of reactants One arrow down, one arrow up
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