A sphere of aluminium of 0.04 kg placed for sufficient time in a vessel containing boiling water, so that the sphere is at 
$100°C$. It is then immediately transfered to 0.2 kg copper calorimeter containing 0.2 kg of water at $22°C$. The temperature of water rises and attains a steady state at $25°C$. The specific heat capacity of aluminium is nearly  (specific heat capacity of copper $= 400 J k{g}^{–1} K^{–1}$)