ee 
( 325 ) 
2. The p, v, T diagram of a mixture with a small value 
of « near the critical point of the homogeneous mixture. 
From the consideration we have started from it follows immediately 
that we obtain the system of isothermals of the mixture by moving 
that of the pure substance to an infinitely small amount parallel to 
itself so that the critical point (pp, vx) is brought on to the critical point 
of the homogeneous mixture (par, Vee), and at the same time by 
expanding it infinitely little parallel to its co-ordinates in multi- 
Prk and the abscissae by 2E Moreover an isother- 
Pk Uk 
mal, belonging to the temperature 7 in the first system will belong 
plying the ordinates by 
to the temperature El T after we have moved and inagnified the system. 
We put again: 
p=l, +4, (eva) Hb, (oven)? + 1, (vver)’ +. - (13) 
where /,,/,,/, ete. are once more functions of the temperature, thus: 
=, +4, (LT) + bs (FT Tar)? +... . (13) 
According to the derivation from the reduced equation of state 
by means of Tir, por, Ver the co-efficients /,,, Ll, lo, 1, ete. are 
only functions of «. Putting: 
Trk = Ty 1 + ae Hate? +....) 
Dak sxe DEAS ==: Baie Bie? Aep ila. i: coe est a 
vak = Or (1 + ya Hy? +....) 
where 
pna, YaBB ete, ve 4) 
we find 
=P HB bnl (Bel eh (Bee 
Bd klar] bek [1(30-2BeH 
1,0 bk [1—(a-Be tl 
L,p—hyol 1— (Ba — 4B) Han Joe 
VERE Meiske U ars bP Ge 
where all co-efficients / are expressed in co-efficients k as well as in 
KAMERLINGH ONNES’ a's and #’s. 
From the values of Tir, per, Vor, With mixtures of carbon dioxide 
with small quantities of hydrogen for «= 0, «= 0,05 and « = 0,1, ') 
I find: 
1) Comm., n°. 65. 
