In liquids and gases, electric current is not transported only by electrons as it is in solids, but also by positive and negative ions. Also, the electric current in liquids can cause their decomposition.
1 16.1 Electrolysis
1.1 16.1.1 Amount of substance
Amount of substance, n, measure of the number of particles in a quantity of equal particles (atoms, molecules or ions), independent of their mass.
amount of substance = particle number/Avogadro constant |
N |
||
|---|---|---|---|
|
Symbol |
Unit |
Quantity |
n |
mol |
amount of substance |
|
N |
l |
particle number |
|
N A |
l/mol |
Avogadro constant |
|
Mole, mol, SI unit of the amount of substance. 1 mol is the quantity of substance that contains just as many particles as 0.012 kg 12C.
Avogadro constant, Avogadro’s number, also Loschmidt number, NA, the number of particles in 1 mol of substance.
1.2 16.1.2 Ions
1.2.1 1. Ionization and ions
Ionization, removal of one or several electrons from an atom, or addition of one or several electrons to an atom, so that the resulting object is...
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Editor information
Rights and permissions
Copyright information
© 2002 Springer-Verlag
About this entry
Cite this entry
(2002). Current conduction in liquids, gases and vacuum. In: Benenson, W., Harris, J.W., Stocker, H., Lutz, H. (eds) Handbook of Physics. Springer, New York, NY. https://doi.org/10.1007/0-387-21632-4_16
Download citation
DOI: https://doi.org/10.1007/0-387-21632-4_16
Publisher Name: Springer, New York, NY
Print ISBN: 978-0-387-95269-7
Online ISBN: 978-0-387-21632-4
eBook Packages: Springer Book Archive