# ABSOLUTE SPECIFIC GRAVITY

 The ratio of the weight of a given volume of a substance in a vacuum at a given temperature to the weight of an equal volume of water in a vacuum at a given temperature.

## Related Terms

### BULK MODULUS OF ELASTICITY

The ratio of the compressive or tensile force applied to a substance per unit surface area to the change in volume of the substance per unit volume. Also known as bulk modulus; compression modulus; hydrostatic modulus; modulus of compression; modulus of volume elasticity.

### RELATIVE LIQUID DENSITY

The mass of a liquid at a given temperature compared with the mass of an equal volume of fresh water at the same temperature or at a different given temperature.

### DENSITY

The mass per unit volume of a substance at specified conditions of temperature and pressure.

### ANOMALOUS EXPANSION

An increase in the volume of a substance that results from a decrease in its temperature, such as is displayed by water at temperatures between 0 and 4 C (32 and 39 F).

### BULK FACTOR

The ratio of the volume of loose powdered or granulated solids to the volume of an equal weight of the material after consolidation into a voidless solid.

### COOLING METHOD

A method of determining the specific heat of a liquid in which the times taken by the liquid and an equal volume of water in an identical vessel to cool through the same range of temperature are compared.

### SPECIFIC HUMIDITY

Ratio of weight of vapor to the weight of gas in a unit volume of an air-water vapor mixture.

### HUMPHRIES EQUATION

An equation which gives the ratio of specific heats at constant pressure and constant volume in moist air as a function of water vapor pressure.

### KELVIN SCALE

The basic scale used for temperature definition; the triple point of water (comprising ice, liquid, and vapor) is defined as 273.16 K; given two reservoirs, a reversible heat engine is built operating in a cycle between them, and the ratio of their temperatures is defined to be equal to the ratio of the heats transferred.

### SPECIFIC GRAVITY

The ratio of the weight of a unit volume of a material to the weight of the same unit volume of water.

### Related questions

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