20g of ice are at thermal equilibrium with 200g of water in a thermally isolated vessel. a 60g block of aluminum at 250 c is dropped into the water-ice solution. lf=333 kj/kg for water, specific heat of water=4.2 kj/(kg k) specific heat of aluminum 0.9 kj/(kg. k) a)-what is the final temperature at thermal equilibrium? b)-what is the entropy change of the 20g of ice?

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