A system of physical chemistry - Index of

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A system of physical chemistry - Index of

46

A SYSTEM OF PHYSICAL CHEMISTRY

sram-atom. if a monatomic solid be considered, and if the atoms be

identified with the resonators.^

Hence, the term 2U reckoned for N " linear " atoms where N is

now regarded as the number of atoms in a gram-atom (or molecules in

a gram-mole) should be identical with RT, That is, RT = >^NT, or

R = /^N. The constant k is therefore simply the gas constant reckoned

for a single molecule.

We may see in another way that k has this significance. As has

^

been pointed out already, Jeans has shown that for very long waves

the law of the partition

of energy, or of energy-density between waves

of different lengths, as expressed in a formula, must contain the wavelength

term to the inverse fourth power. A similar formula was de-

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