Aluminium can of mass 500 gm contain 117.5 gm of water at a temperature of 20 degree celcius .A 200 gm block of iron at a temperature of 75 degree celcius is dropped into the can . Find the final temperature assuming no heat loss to the surrounding. The specific heat capacity aluminium and iron are 0.91 jgm^-1 c^-1 and 0.47gm^-1 degree celcius respectively