Show Surface Water Does Doe Not Boil in Uniform Motion The surface of water vigorously boiling in a teakettle or in n an evaporator evaporator evaporator Is characterized by discontinuous rather than uniform motion says Industrial and Engineering Chemistry I Geysers boll boil up and subside SurgIng Surg Surg- Surging ing waves swing awing from side to side and are broken up by geysers Large bubbles of steam or vapor break breakthrough breakthrough breakthrough I through the surface and explode throwing large small and infinitely Infinite Infinite- J ly minute drops of liquid into the vapor space I Large and small drops of liquid are projected from the surface arching upward two three or more feet Drops strike and combine and are frequently broken Into a mixture of ot small and large drops bythe by br bythe the Impact Particles dance about I in space invisibly supported finally to tall fall or be carried away With increasing concentration of the liquor there is change of condi Foam may be seen collecting along the outer edges of the liquid squid surface Eventually this may build buildup buildup up to a deep rolling viscous blanket pr It may mat have ave the appearance of an unstable tenuous tenuous li frothy mass At the surface of this blanket bubbles bubbles bub bubo bles burst spraying droplets droplet and minute bubbles into the vapor space A strong light projected through the observation window shows that few of these smaller particles tall fall fallback back to the foam or liquid They are swept away In hi the vapor passIng pass pass- Ing to the outlet |