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| Keywords: NSRW Evaporation - evaporator.jpg en Diagram of apparatus for an evaporation experiment If a watch-glass be placed on a cork with sulphuric ether on the glass and water underneath the glass as shown in the figure the water may be frozen almost immediately by simply blowing a steady stream of air over the surface of the ether The vapor-tension of ether is high even at ordinary temperatures so that evaporation is rapid Since the latent heat of the vapor is derived from the heat in the ether glass and water the water is quickly frozen The New Student's Reference Work v 2 1914 p 636 unknown artist published 1914 PD-US LA2-NSRW-2-0162 jpg Evaporators | ||||
