a. Define specific latent heat and explain the difference between latent heat of fusion and latent heat of vaporisation.
b. An electric heater generating power of 120 W is immersed in a beaker of liquid that is placed on a balance. When the liquid begins to boil it is noticed that the mass of the beaker and liquid decreases by 6.2 g every minute.
i. State how this shows that the liquid is boiling at a steady rate.
ii. Calculate a value for the specific latent heat of vaporisation of the liquid.
iii. State and explain whether the value determined in ii is likely to be larger or smaller than the accepted value.