Energy transfer during Exothermic and Endothermic reactions
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7 Terms
What is an exothermic reaction?,
"A reaction that releases energy to the surroundings, usually as heat, causing a temperature rise.
What is an endothermic reaction?,
"A reaction that absorbs energy from the surroundings, causing a temperature drop.
Give examples of exothermic reactions.,
Combustion, neutralisation, oxidation reactions.
Give examples of endothermic reactions.,
Thermal decomposition, photosynthesis, citric acid + sodium hydrogencarbonate."
How is energy transferred during a chemical reaction?,
Chemical energy is surrounded to or from surroundings as heat.
What happens to the temperature in an exothermic reaction?
Temperature of surroundinds increases.
What happens to the temperature in an endothermic reaction?,
Temperature of surroundings decrease