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Tag Archives: exothermic reaction

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Enthalpy Change

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 5, 2010Leave a comment

Enthalpy change is also known as heat of reaction, enthalpy of reaction, change in heat content. Enthalpy = total energy of a system It is impossible to measure the total kinetic and potential energy of a system, so instead we measure enthalpy change (using calorimeters). Enthalpy Change –  is the energy absorbed from or released…

Collision Theory and the Rate of a Reaction

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 5, 2010Leave a comment

During a chemical reaction, reactant bonds need to be broken so that the atoms can rearrange to form the products.  The kinetic energy of all the particles (the molecules, compounds, elements, atoms and ions) reacting is responsible for the breaking of these bonds.  Remember, the temperature of the particles is a measure of the average…

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