CHEMICAL PHENOMENA IN LIFE 



further 



C (i-) 3 =C 3 

 finally 



C (i-k)'=C t . 



If, instead of I, we take the time unit equal to 

 , we have to take k w-times smaller, and, in- 

 stead of /, to write nt. The equation will now be : 



C/ T *\/ c 

 o I 1 ) k,,,. 



If we introduce for the value l dt we have for 

 n=kd. The equation then becomes : 



r /_ i\<<*/ r 

 c o (13) =<s*t. 



The expression (i j) rf can be developed 

 according to the binomial theorem into e, the 

 basis of natural logarithms. The equation can be 

 formed as follows : 



C.x^'=C n , 

 Or if we take logarithms : 



In C Q ln C t =kt. 

 By introducing Brigg's logarithms we have : 



*i =0-4343* =7 (log C Q -log Q. 



This expression contains values which may be 

 determined by experiment. If we therefore find 

 that the quotient of the difference of the logarithms 

 in the beginning and at the end of the time of 

 observation, measuring the time in minutes, is 

 constant, we may be certain that only the con- 

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