Definition the certain latent high temperature of evaporation of the liquid using capital equipment and calculations. The accepted value of the latent high temperature of evaporation. The uncertainty for the specific latent heat of vaporization.
Аннотация к работе
Measuring Specific Latent Heat of Vaporization of Water Introduction: The aim of this experiment was to determine the specific latent heat of vaporization of a liquid using basic equipment and calculations. The accepted value of the latent vaporization heat is 2.3x 104 Jkg-1. Hopefully the results obtained will be similar to the accepted value. Apparatus: Kettle 3 beam Scales Stop watch Variables: Method: 1. Take the kettle and fill it up half way with water 2. Put it on the scales and measure the mass 3. Record the mass in the data table 4. Turn on the kettle 5. When the water starts to boil start timing 6. Stop timing when 50 grams of water have been lost 7. Record in the data table 8. Repeat steps 1-7 five times Data Collection and Analysis Time of the trials Trials Mass/kg ± 0.005 Time/s ± 5s 1 0.050 187 2 0.050 180.0 3 0.050 180.0 4 0.050 192 5 0.050 145 Average 0.050 186 Uncertainties The scientist determined the uncertainties by measuring them. The scientist wasn’t sure when to start timing the boiling