Measuring specific latent heat of vaporization of water
Instruction: Press <Start> to heat the water. When water boils, press <Take initial readings>. Wait for about 10 g of water to boil away and press <Take final readings>. Press <Show calculation> to see how the specific latent heat of vaporization of water is obtained.
Start Reset
Take initial readings Take final readings
{{item}}J
{{massLabel}}g


Heating paused due to low water level.
Calculation
Mass of water boiled off m
= m1 – m2
= – = g = kg
Energy supplied E
= j2 – j1
= – = J
Specific latent heat of vaporization of water lv
= __ = ____________ = x 106 J kg–1
E
m
Demo Clear