2297513
Descrição
FlashCards por leigh.smith, atualizado more than 1 year ago
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Criado por leigh.smith
mais de 9 anos atrás
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| Questão | Responda |
| Standard conditions | 1 atmosphere and 298K |
| Standard enthalpy change of reaction | The enthalpy change that accompanies a reaction in the molar quantities expressed in a chemical equation under standard conditions, all reactants and products being in their standard states |
| Standard enthalpy change of combustion | The enthalpy change that takes place when 1 mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard states |
| Standard enthalpy change of formation | The enthalpy change that takes place when 1 mole of a compound is formed from its constituent elements in their standard states under standard conditions |
| Standard state | The physical state of a substance under standard conditions |
| Moles(n)= | Mass(m) / Molar mass(M) |
| Bond enthalpy | The enthalpy change that takes place when breaking by homolytic fission 1 mole of a given bond in the molecules of a gaseous species |
| Average bond enthalpy | The average enthalpy change that takes place when breaking by homolytic fission 1 mole of a given type of bond in the molecules of a gaseous species |
| Hess' law states that | If a reaction can take place by more than one route and the initial and final conditions are the same, the total enthalpy change is the same for each route |
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