Term
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Definition
| A species with an unpaired electron |
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Term
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Definition
| An atom (or group of atoms)that is attracted to an electron-rich centre or atom, where it accepts a pair of electrons to form a new covalent bond. |
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Definition
| An atom (or group of atoms)that is attracted to an electron-deficient centre or atom, where it donates a pair of electrons to form a new covalent bond. |
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Definition
| A pressure of 100kPa (1 atomsphere) a stated pressure temperature, usually 298K (25C) and a concentration of 1 mol dm-3 (for reactions in aqueous solutions) |
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Term
| Enthaply Change Of Combustion |
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Definition
| The standard enthaply change that takes place when one mole of a substance reacts completely with oxygen under standard conditions, all reactants and products being in their standard states. |
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Term
| Enthaply Change Of Formation |
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Definition
| The enthaply change that takes place when one mole of a compound in its standard state is formed from its con stituent elements in their standard states under standard conditions |
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Term
| Enthaply Change Off Reaction |
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Definition
| The enthaply change that accompanies a reaction in the mlar quanties expressed in a chemical reaction under standard conditions, all reactants and products being in their standard states. |
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Definition
| The average enthaply change that takes place when breaking by homolytic fission 1 mol of a given type of bond i the molecules of a gaseous |
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Term
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Definition
| When a system in a dynamic equillibrium is subjected to a change, the position of equillibrium will shift to minimise the change. |
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Term
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Definition
| The separation of the components in a liquid mixture into fractions which differ in boiling point by means of distillation, typicaly using a fractionating colomn |
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