Term
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Definition
| the process in which a solid changes to a gas or vapor without passing through the liquid state |
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Term
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Definition
| a graph showing the conditions at which a substance exists as a solid, liquid, or vapor |
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Term
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Definition
| the point on a phase diagram that represents the only set of conditions at which all three phases exist in equilibrium with one another |
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Term
| why does sublimation occur? |
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Definition
| because solids have a vapor pressure |
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Term
| some uses of sublimation... |
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Definition
| to seperate mixtures/ to purify compounds |
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Term
| when does sublimation occur |
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Definition
| when the vapor pressure exceeds the atmospheric pressure at room temperature |
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Term
| what does a line seperating two phases on a phase diagram mean? |
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Definition
| tells the temperature and pressures where the substance is at equilibrium (of two phases) |
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Term
| what is the y-axis on a phase diagram? |
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Definition
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Term
| what is the x-axis on a phase diagram? |
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Definition
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Term
| what is a phase diagram used for? |
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Definition
| estimating boiling/ melting/ freezing points |
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