The magazine says it tested 10 insect repellents in an outside laboratory, where volunteers let deer ticks crawl on them and also exposed themselves to mosquitoes. Six of these repellents earned a recommended rating from Consumer Reports. These six repellents, along with their active ingredients and cost, are:
Evaporation vs. Boiling Boiling occurs when the temperature of the liquid is greater than the boiling point of the substance. Evaporation can occur at any temperature.
Evaporation, which occurs at temperatures below the. boiling point of a compound, involves the transition from liquid to vapor of only those. molecules at the liquid surface. Evaporation continues until an equilibrium is reached between. molecules entering and leaving the liquid and vapor states.