A piece of iron of mass m = 325 g is placed in a calorimeter filled with thawing ice. The amount of ice that will melt by the time thermal equilibrium is reached is (n.4) × 10 1 g where n is a single digit number. If the volume of the piece of iron being lowered into the calorimeter is V = 48 cm 3 . The density of iron at 0ºC is d 0 = 6.8 g/cm 3 , its thermal capacity C = 0.12 cal/g ºC and the coefficient of volume expansion of iron is γ = 3.3 × 10 –5 / ºC. Find the value of n.
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CHECK THE SOLUTION.
(6)
M = 
= 64
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