K.C.S.E Physics Q & A - MODEL 2003PP2QN03

K.C.S.E Physics Q & A - MODEL 2003PP2QN03

​a) State what is meant by the term "specific latent heat of vaporization"
b) In an experiment to determine the specific latent heat of vaporization of water, steam at 100C was passed into water contained in a well-lagged copper calorimeter. The following measurements were made;
(i) Determine the:
I Mass of condensed steam
II Heat gained by water
Heat gained by calorimeter

​(ii) Given that L is the specific latent heat of vaporization of steam,
I write an expression for the heat given out steam.
II Determine the value of L.

ANSWERS