Glossary

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Rankine: The temperatureA physical property that indicates whether one object can transfer thermal energy to another object. scale that uses as its zero point the absolute zeroThe minimum possible temperature: 0 K, -273.15 °C, -459.67 °F. of the temperature scale and that has degrees the same size as the FahrenheitThe temperature scale defined by the values 32 °F for the freezing point of water and 212 °F for the boiling point of water. scale.

Term of the Day

The equilibrium constant expressionThe ratio of the concentrations of products in a balanced chemical equation, each concentration raised to the power of its coefficient, divided by the concentrations of reactants, each raised to the power of its coefficient; at equilibrium this ratio has the value of the equilibrium constant. for the dissolution of an electrolyteA substance that dissolves to produce a solution containing ions, which cause the solution to conduct electricity.; the reactantA substance consumed by a chemical reaction. is a solidA state of matter having a specific shape and volume and in which the particles do not readily change their relative positions. and its concentrationA measure of the ratio of the quantity of a substance to the quantity of solvent, solution, or ore. Also, the process of making something more concentrated. does not appear in the expression, which is a productA substance produced by a chemical reaction. of the concentrations of the products (raised the to appropriate powers).