An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calori

Question

An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10.0

An aluminum calorimeter with a mass of 100 g contains 250 g of water. The calorimeter and water are in thermal equilibrium at 10.0 degree C. Two metallic blocks are placed into the water. One is a 50.7-g piece of silver at 80.0 degree C. The other has a mass of 297.2 g and is originally at a temperature of 100 degree C. The entire system stabilizes at a final temperature of 20.0 degree C. (Use any necessary data on specific heats found in this table.) Determine the specific heat of the unknown sample. J/kg degree C

Explanation / Answer

heat lost by masses= heat gain by water and calorimeter

50.7*0.056*(80-20) + 297.2*S*(100-20) = 100*0.215*(20-10) +250*1*(20-10)

S=0.107 cal/g.C

= 447.47 J/kg.C

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