FERMENTS, OR ENZY Ml 



t I in vi locity constant in ti ■ <is un- 



changed throughout th( reaction, whereas in tl 

 conn s i it) ■ or gn <it, ,• ,/„• //,, y, 



changed by catalytic action, it is, of com 



in concentration bo thai less and less of it remains to be 1 



implies thai there are fewer molecule 



catalysl to act on and consequently thai the amounl anil 



ot time is progressively less, At any momenl 

 catalysis will 1).- proportional to the amounl 

 left. To understand this we must refer back to whal we ha 

 mass action. It' we suppose thai two sul i. and B react 1 



two other substances C and 1>. then, by the law of m 

 tic.ii will nol go "ii to completion bul will stop when ;i certain equilibrium 

 is reached. The reaction can 1"- represent 

 A I'.. -•!' i). which means thai it proc al a rate i»; 

 the reacting molecules. In Bomi 3 this reaction g until 



A or Bhas practically disappeared (thai is, the equilibrium point is v< 



■■ the righl of the equation . as is tl in the i' 



sugar: 



C 12 H M H" 'II I II 



Taking place as it does in an 

 little tendency for this reaction to '- r o in the opp 

 versible action' (page 25 . the onlj thing which will influei 

 velocity is the concentration of cane sugar; in other words, th< 

 of the reaction a1 anj moment will depend solely on thi 

 C, of the materia] still left undecomposed. This cai 

 means of an equation.* 



The value of siidi an equation is that it giv< 



ing the amount of inversion that would OCCUr in each nnit • 



cane sn'_ r ar were kept in constanl entratioiL When, 



it is stated that K for a particular strength i actin 



solution is 0.002, this means that when volume, ■ 



•If x be the 



■ 



KC Dal 

 the rr/irt : 

 calculus, 



m that 5x ti 



mcth 



| 



thin permiltii 

 timet 



A- 



