# Atmosphere (unit)/Related Articles

From Citizendium, the Citizens' Compendium

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## Parent topics

- Chemistry [r]: The science of matter, or of the electrical or electrostatical interactions of matter.
^{[e]} - Engineering [r]: The profession in which a knowledge of the mathematical and natural sciences gained by study, experience and practice is applied with judgment to develop ways to economically use the materials and forces of nature for the benefit of mankind.
^{[e]} - Physics [r]: The study of forces and energies in space and time.
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## Subtopics

- Earth science [r]: The study of the components and processes of the planet Earth.
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- Atmospheric pressure [r]: The ambient air pressure at any given point in Earth's atmosphere.
^{[e]} - Bar (unit) [r]: A unit of pressure measurement (symbol: bar) defined as 100,000 Pascals.
^{[e]} - Chemical engineering [r]: The field of engineering that deals with industrial and natural processes involving the chemical, physical or biological transformation of matter or energy into forms useful for mankind, economically and safely without compromising the environment
^{[e]} - Dyne [r]: Force in cgs system; symbol: dyn; 1 dyn = 10
^{−5}N.^{[e]} - Earth's atmosphere [r]: An envelope of gas that surrounds the Earth and extends from the Earth's surface out thousands of kilometres, becoming increasingly thinner (less dense) with distance but always held in place by Earth's gravitational pull.
^{[e]} - International System of Units [r]: Metric unit system based on the metre, kilogram, second, ampere, kelvin, mole and candela.
^{[e]} - Kilogram-force [r]: A unit of force which will accelerate 1 kilogram of mass to 9.80665 m/s
^{2}, the standard average acceleration due to gravity on Earth's surface (referred to as).**g**_{n}^{[e]} - Kilogram-force per square centimeter [r]: The
**kilogram-force per square centimeter**(symbol:**kgf/cm**or often just^{2}**kg/cm**) is a unit of pressure defined as the force exerted by one kilogram-force on one square centimeter.^{2}^{[e]} - Pascal (unit) [r]: The SI unit of pressure; the force of one newton acting uniformly over an area of one square metre.
^{[e]} - Pound-force [r]: A measurement unit of force which will accelerate 1 pound of mass to 9.80665 m/s
^{2}(≈ 32.17405 ft/s^{2}), the standard average acceleration due to gravity on Earth's surface (referred to as).**g**_{n}^{[e]} - Pound per square inch [r]: A unit of pressure in the U.S. customary units and defined as the pressure exerted by a force of one pound-force applied to an area of one square inch.
^{[e]} - Pressure [r]: A ratio equal to the force applied perpendicular to the surface of the area divided by that area (force/area).
^{[e]} - Reference conditions of gas temperature and pressure [r]: The temperature and pressure conditions that define the density of a gas and serve to document a stated gas volume.
^{[e]} - Thermodynamics [r]: The statistical description of the properties of molecular systems
^{[e]} - Torr [r]: A non-SI unit of pressure (symbol: torr) with ratio of 760 to 1 atmosphere, selected to be approximately equal to the fluid pressure exerted by 1 millimeter of mercury (symbol: mmHg) and thus 1 torr ≈ 1 mmHg.
^{[e]} - U.S. customary units [r]: The units of measurement that are currently used in the United States.
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