Question

I need at least a formula to start with this problem. please help.

25 1g of iron pellets (spherically shaped) at 99 degree c is added to a perfectly insulated container containing 150 mls water and 50g of ice. Before the iron is added the water/ice are at perfect equilibrium.

a. what is the diameter of the iron when it is at 99 degree c?


density of iron= 7.870 kg/m^3


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This is what I did so far;

I figured out the volume using density =m/v
then used volume= 4/3 pie r^3
r= 0.9119

so diameter = 0.8316

is that right, I just ignored the temperature!

Answer 1

unless the density of iron is given at another temperature, it should be fine