8 



The Explosion of Hydrogen and Chlorine. 

 Rate of Explosion in Metres per Second. 



Dry. 



Wet. 



;il^}'798 



1799/ '^^ 

 '^*^^ 1 1787 



181I J ' ' 



1728 1 

 18691^798 



^767 ( ,800 

 1832 1 



^J86}'757 



xl^°}^774 



'787 K ^80 

 1772 / ' 



Mean.. 1795 



Mean. .1770 



Difference due to water present = 2^ met. per sec. 



It appears, therefore, that the explosion, once started, 

 travels slightly faster in the dry gases than in the wet ; the 

 moisture appearing merely to act as a diluent. We propose 

 to repeat the experiments, using a longer explosion tube. 



