68 



BRIDGMAN. 



Silver Nitrate.^ — There are two modifications, the transition is 

 of the ice type, and there is a sudden and remarkable increase of cur- 

 vature of the transition hne near 7000 kgm. The transition accelera- 

 tion curves are shown in Figure 12 and the breadth of the region of 



.O36 





H.O32 



■ 2000 4000 6000 

 ^ Pressure, kgm. /cm. ^ 

 Caesium Nitrate 



Figure 11. Caesium Nitrate. The pressure acceleration of the velocity 

 of transition at zero velocity as a function of pressure along the transition 

 line between the two low temperature modifications. 



40° 80° 120° 



Temperature 

 Silver Nitrate 



160° 



Figure 12. Silver Nitrate. The pressure acceleration of the velocity of 

 transition at zero velocity as a function of temperature along the transition 

 line. The position of the maximum corresponds to a region of rapid change of 

 direction of the transition line. 



indifference in Figure 13. The acceleration with falling pressure is 

 greater throughout; the region of increase of curvature of the transi- 

 tion line is mirrored by a remarkable increase of reaction velocity. 



8 G, p. 582. 



