Chemistry, 31.08.2021 16:50 kingjames82

a copper of mass 120g is heated in an enclosure to a temperature of 12.5c. it then taken out bof enclosure and hold in air for a min and dropped carefully into a copper calorimeter of mass 105g containing 200g of water of 20c% the temp of the water rises to 25c. calculate the rate at which heat is boiling from the pieces of copper

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