specific gravity is a comparison of the weight of a substance to the weight of an equal volume of
Specific gravity Specific gravity is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. Apparent specific gravity is the ratio of the weight of a volume of the substance to the weight of an equal volume of the reference substance. The reference substance for liquids is nearly always water at its densest (at 4 째C / 39.2 째F); for gases it is air at room temperature (20째C / 68째 F). Nonetheless, the temperature and pressure must be specified for both the sample and the reference. Pressure is nearly always 1 atm (101.325 kPa).
In situ In chemistry, in situ typically means "in the reaction mixture."
Rate equation k is the first order rate constant, which has units of 1/s or sâˆ’1.
Economic nationalism While the coining of the term "
Import quota Quotas, like other trade restrictions, are typically used to benefit the producers of a good in that economy.
Standard deviation This means that the standard deviation is equal to the square root of the difference between the average of the squares of the values and the square of the average value. See computational formula for the variance for proof, and for an analogous result for the sample standard deviation.