A block of ice at 
has a hollow in its top surface, as illustrated in the figure below.
A mass of 
of water at 
is poured into the hollow. The water has specific heat capacity 
. Some of the ice melts and the final mass of water in the hollow is 
. Assuming no heat gain from the atmosphere, calculate a value, in 
, for the specific latent heat of fusion of ice.
.
