User:Milton Beychok/Sandbox: Difference between revisions
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imported>Milton Beychok No edit summary |
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:<math>x_\mathrm{a} = \frac{n_\mathrm{a}}{n_\mathrm{a} + n_\mathrm{b} + n_\mathrm{c} \ldots} = \frac{n_\mathrm{a}}{n_\mathrm{total}}</math> | :<math>x_\mathrm{a} = \frac{n_\mathrm{a}}{n_\mathrm{a} + n_\mathrm{b} + n_\mathrm{c} \ldots} = \frac{n_\mathrm{a}}{n_\mathrm{total}}</math> | ||
{|border="0" cellpadding="2" | |||
|- | |||
|align=right|where: | |||
|- | |||
|align=right|<font style="vertical-align:-20%;"><math>x_\mathrm{a}</math></font> | |||
|align=left|= the mole fraction of component <font style="vertical-align:-5%;"><math>\mathrm{a}</math></font> in the mixture | |||
|- | |||
|align=right|<font style="vertical-align:-20%;"><math>n_\mathrm{a}</math></font> | |||
|align=left|= the number of moles of component <font style="vertical-align:-5%;"><math>\mathrm{a}</math></font> in the mixture | |||
|- | |||
|align=right|<font style="vertical-align:-20%;"><math>n_\mathrm{b}</math></font> | |||
|align=left|= the number of moles of component <font style="vertical-align:0%;"><math>\mathrm{b}</math></font> in the mixture | |||
|- | |||
|align=right|<font style="vertical-align:-20%;"><math>n_\mathrm{c}</math></font> | |||
|align=left|= the number of moles of component <font style="vertical-align:-5%;"><math>\mathrm{c}</math></font> in the mixture | |||
|- | |||
|align=right|<font style="vertical-align:-20%;"><math>n_\mathrm{total}</math></font> | |||
|align=left|= the total number of moles in the mixture | |||
|} |
Revision as of 00:48, 3 September 2008
The mole fraction is a measure of the concentration of a component substance in a mixture of substances. It is defined as the number of moles of a component substance of a mixture divided by the total number of moles of the mixture. It may be expressed as:
where: | |
= the mole fraction of component in the mixture | |
= the number of moles of component in the mixture | |
= the number of moles of component in the mixture | |
= the number of moles of component in the mixture | |
= the total number of moles in the mixture |