1293 
(p+ 7r)(v-b) = KT 
where T is the absolute temperature and 77, b, K are all 
constants. In this case we find that 
where Cy, the average specific heat at constant volume, is 
given by T 
To. dT 
Using the equation of state to eliminate the temperature 
from equation (4) we obtain 
E-E, = — [ (e+ m1 )(v-b) = (pot 7 (vorb)} +: 
+ 11 (v-vo) 
The substitution of this expression in equation (3) gives 
(2ey Po +7 
v-b ig K +. a) ar a +45] 
Wom a 
Ley aa 1) + Po+ 77 
K p +77 
Put _ Pott = Po 
. Sper 8 
_ veb 
and n =¥5-b 
and y i+ 
Cy 
Then the so-called Rankine-Hugoniot dynamic adiabatic is 
given by 
SoS (3° 
| ie + Ve 
