DOC.

5

71

and

E[,

E2

5{,

5-

••E'i

..S

I

'

The

probability

of the total

state of

the heat reservoir defined

by

these

values will

be

[12]

1

2/c

(b)

2U'

=

C\

C2'

C£e

i

E

S'

1

i

S

V

1

7^

Neither the

state

of the

environment

nor

the

state of

the

engine has

changed

during

the

process,

because the latter

underwent

a

cyclic

process.

If

we

now assume

that less

probable states

never

follow the

more

probable

ones, we

have

2H!

W

.

[13]

But

we

also

have,

according

to

the

energy

principle,

I i

i1

-ip

1 1

If

we

take

this into account, then it follows

from equations (a) and

(b)

that

i

Is.

3.

On

the

meaning

of

the constant

k

in the kinetic

theory of

atoms

[14]

Let

us

consider

a

physical

system

whose

instantaneousstate

is

completely

determined

by

the values of the

state

variables