356 Dr. Gr. Gore on the Loss of Voltaic Energy 



In this case the mean relative amount of voltaic energy of 

 the original substances was 453,696, which was reduced to 

 5959 by the formation of a chemical compound represented 

 by the 'formula NaCl, KOI. 



Table V. 

 Na2S04 + K2S04. 



Between Parts of 1 part 



1 part in Water Temp. in 



K,SO, 2,152 and 2,396 at 12° C. 2,274 



2Na,SO,+3K,SO, .... 137 150 17 143 



2 „ +2 „ X .. 106 119 17 112 



3 „ +2 „ .... 145 160 17 152 

 „ 1,914 2,126 13 2,020 



The mean energy of the original substances was 2147, and 

 was decreased to 112 by the formation of a compound having 

 the formula Na2S04, K2SO4. 



In the next table the reduction of energy is carried 

 further : — 



Table VI. 

 Na2S04, K2SO4 + NaCl, KCl. 



Between Parts of 1 part 



1 part in Water Temp. in 



NaCl, KCl 5,548 and 6,370 at 20° C. 5,959 



2Na,SO„K,SO,+5NaCl,KCl. 44 47 16 45-5 



2 ,", „ +4 „ „ X.. 39 43 16 41 



2 „ „ +3 „ „ .... 50 55 16 52-5 



„ 106 119 17 112 



In this case the mean relative energy of the constituents 

 was 3085, and was reduced to 41 by the formation of a 

 definite compound having the formula Na2S04, K2SO4, 

 2NaCl, KCl. 



In Table VII. the energy is so much more diminished that 

 it has become a negative quantity, i. e. it is less than that 

 with water alone, the change of potential on adding the sub- 

 stance being a decrease of electromotive force instead of an 

 increase : — 



