A piece of copper of mass 300g at a temperature of 950 o C is quickly transferred into a vessel of negligible heat capacity containing 250g
of water at 25 o C. If the final steady temperature of the mixture is
100 o C. Calculate the mass of water that will boil away. (take specific
heat capacity of copper = 4.0x10 2 Jkg -1 K -1 , specific heat capacity of
water = 4.2 x10 3 Jkg -1 K -1 , specific latent heat of vaporization of steam =
2.26x10 6 Jkg -