Hess's Law

Descrição

A level Chemistry (3.2 Physical Chemistry) FlashCards sobre Hess's Law, criado por Yinka F em 05-03-2018.
Yinka F
FlashCards por Yinka F, atualizado more than 1 year ago
Yinka F
Criado por Yinka F mais de 6 anos atrás
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Resumo de Recurso

Questão Responda
What does Hess's Law state? Hess's law states that the total enthalpy change of a reaction is always the same, no matter which route is taken
TRUE OR FALSE: The enthalpy change of formation for all elements is zero TRUE The element's being formed from that element, so there's no change in enthalpy
Describe the Hess cycle used to calculate the enthalpy change of reaction for the reaction below, given the enthalpies of formation SO₂ + 2H₂S --> 3S + 2H₂O
Describe the Hess cycle used to calculate the enthalpy change of formation for ethanol, given the enthalpies of combustion
Using this Hess diagram, describe the calculations needed to calculate the enthalpy change of reaction for the following reaction Using Hess's Law, route 1 = route 2 ΔᵣH = -(ΔH₁) + (ΔH₂) + (ΔH₃)

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