How to use Ionization in a sentence
The vapourpressure equations are seldom known with sufficient accuracy, and the ionization data are incomplete.
Throughout most of a core the fractional ionization depends on the fractional elemental abundances of sulfur and metals such as Na and Mg.
Simspon concluded that for a given wind velocity dissipation is practically a linear function of ionization.
Arrhenius has pointed out that the coefficient of affinity of an acid is proportional to its electrolytic ionization.
Ionization The process by which a neutral atom or molecule acquires or loses an electric charge.Advertisement
The properties are important in proportional counters, ionization chambers, drift chambers and in the prediction of the electrical breakdown of gases.
Table 3 lists ionization cross-sections for a number of species relevant in plasma etching.
Since electron ionization is a gas phase technique, it may not be suitable for involatile or thermally labile compounds.
Questions 1. Find out the percentage ionization and pH of a solution containing 0.02 mol dm -3 of benzoic acid in water.
This effect has been tentatively attributed to impact ionization followed by hot carrier interband radiative recombination.Advertisement
A series of concentric rings found in sand on a beach showed very high levels of ionization.
The research experiments have shown that ionization type smoke detectors reacted faster for all research fires than optical type smoke detectors.
The particles produced by fog machines will set off ionization type smoke detectors.
The purpureo chloride has only two-thirds of its chlorine precipitated on the addition of silver nitrate, and the electric conductivity is much less than that of the luteo chloride; again in the praseosalts only one-third of the chlorine is precipitated by silver nitrate, the conductivity again falling; while in the triammine salts all ionization has disappeared.
The presumption is either that d 2 V/dh 2 near the ground is much larger numerically than Gerdien supposes, or else that the ordinary instruments for measuring ionization fail to catch some species of Ion Whose Charge Is Preponderatingly Negative.Advertisement
Mache (62) thinks that the ionization observed in the atmosphere may be wholly accounted for by the radioactive emanation.
Volta then proved that all metals could be arranged in an electromotive 1 Modern researches have shown that the loss of charge is in fact dependent upon the ionization of the air, and that, provided the atmospheric moisture is prevented from condensing on the insulating supports, water vapour in the air does not per se bestow on it conductance for electricity.
The instrument of choice for these measurements is a radionuclide calibrator, the main component of which is an ionization chamber.
Most air purifiers manufactured for use in the home utilize either HEPA filtration or ionization to clean the air.
The proprietary Truman Cell electrostatically charges the smaller air particles, and uses dehydration, high-voltage and ionization to kill microbes.Air fresheners, candles and incense only mask the odors in your home.Advertisement
Ionization seems to increase notably as temperature rises.
The loss of the dissipation body due to the natural ionization of the air is first allowed for.
Mache thinks that the ionization observed in the atmosphere may be wholly accounted for by the radioactive emanation.
But the temperature coefficient of conductivity is now generally less than before; thus the effect of temperature on ionization must be of opposite sign to its effect on fluidity.
The ionization of a solution, then, is usually diminished by raising the temperature, the rise in conductivity being due to the greater increase in fluidity.Advertisement
The chlorine is not completely precipitated by silver nitrate in nitric acid solution, the ionization apparently not proceeding to all the chlorine atoms. Thallic iodide, T11 3, is interesting on account of its isomorphism with rubidium and caesium tri-iodides, a resemblance which suggests the formula T11 (12) for the salt, in which the metal is obviously monovalent.
The theory of the ionization of salts in solution has raised much discussion amongst chemists, but the general fact is certain that electricity only moves through liquids in association with matter, and simultaneously involves chemical dissociation of molecular groups.
Gockel found a diminution of ionization with rise of relative humidity.
The salts tabulated are those of which the equivalent conductivity reaches a limiting value indicating that complete ionization is reached as dilution is increased.
We may take it, then, that only that portion of these bodies is chemically active which is electrolytically active - that ionization is necessary for such chemical activity as we are dealing with here, just as it is necessary for electrolytic conductivity.Advertisement
The influence of temperature on the conductivity of solutions depends on (I) the ionization, and (2) the frictional resistance of the liquid to the passage of the ions, the reciprocal of which is called the ionic fluidity.
At extreme dilution, when the ionization is complete, a variation in temperature cannot change its amount.
As the concentration is increased and un-ionized molecules are formed, a change in temperature begins to affect the ionization as well as the fluidity.
The fact that at most places the morning shows a marked decay of auroral frequency and intensity as compared to the evening, the maximum preceding midnight by several hours, is certainly favourable to theories which postulate ionization of the atmosphere by some cause or other emanating from the sun.
There is a difficulty in reconciling observed values of the ionization with the results obtained from balloon ascents as to the variation of the potential with altitude.Advertisement
Allowing for incomplete ionization the general concordance of these numbers with the theoretical ones is very striking.
Solid copper chloride is brown or yellow, so that its concentrated solution, which contains both ions and undissociated molecules, is green, but changes to blue as water is added and the ionization becomes complete.
We can calculate the heat of formation from its ions for any substance dissolved in a given liquid, from a knowledge of the temperature coefficient of ionization, by means of an application of the well-known thermodynamical process, which also gives the latent heat of evaporation of a liquid when the temperature coefficient of its vapour pressure is known.
It has also been shown that when different salts of the amine are used, their catalytic influence varies in amount and is almost proportional to their degree of ionization in aqueous solution.