| spectroscope |
An apparatus to effect dispersion of radiation and visual display of the spectrum obtained.
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| spectroscopy |
The study of the interaction between matter and radiation. Since the energy levels in all atoms and molecules are discrete (quantized), the absorption or emission of radiation occurs at distinct energies (frequencies) characteristic of a given chemical. The energy levels probed may be rotational (microwave region), vibrational (infrared region), or electronic (visible or ultraviolet). ...
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| specific |
Applied to a physical quantity, especially a thermodynamic variable, usually means per unit mass. For example, specific volume is volume divided by mass, specific enthalpy is enthalpy divided by mass, and so on. Specific quantities are common in meteorology, and hence specific is often omitted as a qualifier, it being understood.
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| specific heat capacity |
(Or specific heat.) The heat capacity of a system divided by its mass. It is a property solely of the substance of which the system is composed. As with heat capacities, specific heats are commonly defined for processes occurring at either constant volume (c v ) or constant pressure (c p ). For an ideal gas, both are constant with temperature and related by c p = c v + R with R the gas constant. ...
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| spectrograph |
A spectroscope with a photographic or other recording device to capture an image of the entire spectrum, or portions thereof, at one instant in time.
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