Glossary of Chemistry Term

Glossary of Chemistry

This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment. Chemistry is a physical science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions; it features an extensive vocabulary and a significant amount of jargon.

absolute zero

A theoretical condition concerning a system at the lowest limit of the thermodynamic temperature scale, or zero kelvins, at which the system does not emit or absorb energy (i.e. all atoms are at rest). By extrapolating the ideal gas law, the internationally agreed-upon value for absolute zero has been determined as -273.15 °C (−459.67 °F; 0.00 K).

absorbance

The physical or chemical process by which a substance in one state becomes incorporated into and retained by another substance of a different state.

Glossary of Physics Terms

Glossary of Physics Terms

This glossary of physics is a list of definitions of terms and concepts relevant to physics, its sub-disciplines, and related fields, including mechanics, materials science, nuclear physics, particle physics, and thermodynamics.

Acceleration:

Rate of change of velocity with time

Artificial Satellite:

Man made objects moving in fixed circular orbits around the earth.

Atomic Physics:

The branch of Physics that deals with the study of the structure and properties of atoms.