DOC.

17 135

Doc. 17

Review

of

K.

F.

SLOTTE,

"On

the

Heat of

Fusion"

("Über

die

Schmelzwärme,"

Finska

Vetenskaps-Societeten. Ofversigt

af

Forhandlingar 47,

no. 7

(1904):

1-8)

[Beiblätter

zu

den

Annalen

der

Physik 29

(1905):

623]

The

author bases himself

on a

relation

between

the heat of fusion

l,

the (absolute)

melting temperature

T1,

and

the

specific

heat

at constant

temperature

cp,

which he had

derived earlier

by

elementary

considerations

based

on

molecular

theory, and which

is

expressed

approximately

by

the formula

l

=

0.382cpT1.

This formula

proves

to be

valid with

rough

approximation

for

elements

as

well

as

for

compounds.

A

few

substances for

which

the

formula

does

not

hold

even

approximately

(sulfur,

phosphorus)

are

also presented.

Incidentally, it should

be

noted that

up

to

the numerical value of the

constant,

the relation

presented,

extended

to

the

solid

aggregation

state, is

a

consequence

of the

law

of

corresponding

states. Finally,

a

molecular-

theoretical

consideration, which

shall

not

be

presented

here,

leads

the

author

to

the view

that

one

obtains the

best

agreement

of

the

theory

with

experience

when

one

ascribes linear

harmonic oscillations

to

the

atoms

of

simple

solids.

[1]

[2]

Doc. 18

Review

of

K.

F.

SLOTTE,

"Conclusions

Drawn

from

a

Thermodynamic

Equation"

("Folgerungen

aus

einer

thermodynamischen

Gleichung,"

Finska

Vetenskaps-Societeten.

Ofversigt

af

Forhandlingar 47,

no. 8

(1904):

1-3)

[Beiblätter

zu

den

Annalen

der

Physik 29

(1905):

629]

Several

conclusions

regarding

the behavior

of

bodies

near

the

absolute

zero

of

the

temperature

are

drawn

from

the familiar

equation

[1]

=

T

SI

av

T

di

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