Energetics

Descripción

A level (Energetics) Chemistry Fichas sobre Energetics, creado por mbaker25 el 03/06/2013.
mbaker25
Fichas por mbaker25, actualizado hace más de 1 año
mbaker25
Creado por mbaker25 hace más de 11 años
70
3

Resumen del Recurso

Pregunta Respuesta
Standard state Pressure: 100KPa(about 1 atm) Temperature: 298K (25 degrees)
Standard enthalpy change of reaction The enthalpy change when the reaction occurs in the molar quantities shown in the chemical equation, under standard conditions in their standard states
Standard enthalpy change of formation The enthalpy change when 1 mole of a compound is formed from its elements in their standard states under standard conditions
Standard enthalpy change of combustion The enthalpy change when 1 mole of a substance is completely burnt in oxygen under standard conditions
Hess's Law The total enthalpy change of a reaction is always the same, no matter which route is taken. It works out the enthalpy change via an alternative route.
Enthalpy change The heat energy transferred in a reaction at constant pressure
Exothermic -Gives out heat energy -Delta H is negative
Endothermic -Absorbs heat energy -Delta H is positive
Mostrar resumen completo Ocultar resumen completo

Similar

Using GoConqr to study science
Sarah Egan
Electrolysis
lisawinkler10
Elements, Compounds and Mixtures
silviaod119
Chemistry General Quiz - 2
lauren_johncock
Chemistry Quiz General -3
lauren_johncock
Chemistry Module C2: Material Choices
James McConnell
AS Chemistry - Enthalpy Changes
Sarah H-V
The Periodic Table
asramanathan
Acids and Bases
Sarah Egan
Ionic Bondic Flashcards.
anjumn10
Acids and Bases
silviaod119