A vessel is completely filled with `500g` of water and `1000g` of mercury. When 21,200 calories of heat are given to it `3.52g` of water overflows. Calculate the volume expansion of mercury. Expansion of the vessel may be neglected. Given that coefficient of volume expansion of water `=1.5xx10^(-4)//C^(@)`, density of mercury `=13.6g//cm^(3)`, density of water `e=1g//cm^(3)`, and specific heat of mercury `=0.03"cal"//gC^(@)`