K.C.S.E Physics Q & A - MODEL 2008PP1QN16

K.C.S.E Physics Q & A - MODEL 2008PP1QN16

​a) Define the term heat capacity. 
b) You are provided with the apparatus shown in Fig. 9 and a stop watch.

Describe an experiment to determine the specific latent heat of steam, l, using the set up. In your answer clearly explain the measurements to be made and how these measurements could be used to determine l.
c) A block of metal of mass 150g at 100⁰C is dropped into a lagged calorimeter of heat capacity 40JK^-1 containing 100g of water at 25⁰C. The temperature of the resulting mixture is 34⁰C. (Specific heat capacity of water=4200JK^-1).
Determine:
(i) Heat gained by calorimeter;
(ii) Heat gained by water;
(iii) Heat lost by the metal block;
(iv) Specific heat capacity of the metal block

answers