Potential Energy
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Last updated 11:29 PM on 3/3/25
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9 Terms
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Enthalpy (H)
The heat stored by a substance in a chemical reaction.
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ΔH
The overall enthalpy change for a reaction.
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Exothermic reaction
A reaction in which heat energy is given out; products have less energy than reactants.
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Endothermic reaction
A reaction in which heat energy is absorbed; products have more enthalpy than reactants.
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Activated complex
A high energy intermediate state in a chemical reaction where bonds are breaking and forming.
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Activation energy
The energy barrier that must be overcome to change reactants into products.
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Effect of a catalyst
A catalyst provides an alternative reaction pathway that lowers the activation energy.
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Solid → Liquid
This state change means gaining energy.
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Gas → Liquid
This state change means losing energy, resulting in a negative ΔH.
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"The Others" - What about Great Britain, Russia, Canada, and the US? - in class 1/29
Updated 410d ago0.0(0)
"The Others" - What about Great Britain, Russia, Canada, and the US? - in class 1/29
Updated 410d ago0.0(0)
