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| The binding together of like molecules, often by hydrogen bonds. |
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| The attraction between different kinds of molecules. |
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| A measure of how difficult it is to stretch or break the surface of a liquid. |
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| The energy associated with the relative motion of objects. Moving matter can perform work by imparting motion to other matter. |
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| The total amount of kinetic energy due to the random motion of atoms or molecules in a body of matter; also called thermal energy. |
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| A measure of the intensity of heat in degrees, reflecting the average kinetic energy of the molecules. |
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| The amount of heat energy required to raise the temperature of 1 g of water by 1°C; also the amount of heat energy that 1 g of water releases when it cools by 1°C. |
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| A thousand calories; the amount of heat energy required to raise the temperature of 1 kg of water by 1°C. |
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| The amount of heat that must be absorbed or lost for 1 g of a substance to change its temperature by 1°C. |
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| Having an aversion to water; tending to coalesce and form droplets in water. |
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| Having an affinity for water. |
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| A single proton with a charge of 1+. |
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| A water molecule that has lost a proton; OH. |
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| A substance that increases the hydrogen ion concentration of a solution. |
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| A substance that reduces the hydrogen ion concentration of a solution. |
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| A measure of hydrogen ion concentration equal to –log [H] and ranging in value from 0 to 14. |
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| A substance that consists of acid and base forms in a solution and that minimizes changes in pH when extraneous acids or bases are added to the solution. |
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Definition
| Rain, snow, or fog that is more acidic than pH 5.2. |
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