Endothermic Reactions 1. ΔrH Notation

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5 Terms

1
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The sign on ΔrH is WHAT since the enthalpy of the system is WHAT

The sign on ΔrH is POSITIVE since the enthalpy of the system is INCREASING

2
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In an endothermic reaction enthalpy is included as a WHAT

Reactant

3
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Potential energy diagram: the reactants will have less WHAT than the products in an endothermic reaction

Potential energy diagram: the reactants will have less POTENTIAL ENERGY than the products in an endothermic reaction

4
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The difference between the reactants and the products is the WHAT

ΔrH

5
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products have WHAT Ep than the reactants, therefor energy has been WHAT by the system

products have MORE Ep than the reactants, therefor energy has been GAINED by the system