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What will be the equilibrium temperature when a 245 g block of copper at 285 oC is placed in a 145 g aluminum calorimeter cup c...Asked by lisa
What will be the equilibrium temperature when a 245-g block of copper at 285„aC is placed in a 145-g aluminum calorimeter cup containing 825g of water at 12.0„aC?
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Answered by
bobpursley
The sum of the heats gained equals zero.
heatgainedCopper+heat gainedwater+heatgainedaluminum=0
245*specheatCu*(Tf-245)+825*specheatH2O*(Tf-12)+ 145*specHeatAl*(Tf-12)=0
solve for Tf.
This ignores the sizzlinglost of vapor when the hot coper is put in.
heatgainedCopper+heat gainedwater+heatgainedaluminum=0
245*specheatCu*(Tf-245)+825*specheatH2O*(Tf-12)+ 145*specHeatAl*(Tf-12)=0
solve for Tf.
This ignores the sizzlinglost of vapor when the hot coper is put in.
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