Evaporation of different liquids Khalid Alibhai Stratford Hall Floor Location: J12P

This experiment, tested the evaporation rates of three liquids. The hypothesis was that if the liquid was less viscous (SSU), then it will evaporate more (ml). When a liquid is more viscous, the forces between the molecules are stronger. Evaporation happens when the liquid gets energy. In this care it was thermal energy. As it gets thermal energy the molecules move faster and gain kinetic energy. When the kinetic energy defeats the intermolecular forces the liquid changes states from a liquid to a gas. Therefore when a liquid is more viscous (such as honey), it requires more energy to defeat the forces between the molecules and evaporate. The 3 liquids tested had very different viscosity; water, olive oil and honey. The purpose of this experiment was to determine which liquid would evaporate the most. The sample size was 100 ml of each liquid. For a fair test the experiment was conducted 2 times. The experiment lasted 30 days. The data collected proved that the hypothesis was correct; 13.5 ml of water evaporated, 4 ml of olive oil evaporated and 0.5 ml of honey evaporated. Since the experiment was conducted 2 times, these are the averages of the collected data. To collect the results, 100 ml graduated cylinders were used. In conclusion, the viscosity of a liquid effects its evaporation rate.