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DavisonH
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Homework Statement
Finding the specific heat capacity of an unknown metal.
A cylinder was placed into boiling water, originally at 24.2 C. The heat transferred from the metal, and the water then was 29.5 C.
Original Temperature-24.2 C
Temperature after the metal has been placed into the water.-29.5 C
m=mass of water (100 g)
C=Specific Heat of Water (1 C)
deltaT=Change of Temperature in water=5.3 (29.5-24.2)
Metal
M=Mass of metal (86.79 g)
deltaT=? (I think it is 5.3, equivalent to the change of temperature in the water)
C=?
I am not entirely sure what I am doing wrong. I thought that the heat gained by the water is equivalent to the heat lost by the metal, therefore the change
Homework Equations
Q=mCdeltaT
Q/m*deltaT=c
The Attempt at a Solution
First I found the heat gained by the water by using the formula Q=mCdeltaT.
Where
m=mass of water (100 g)
C=Specific Heat of Water (1 C)
deltaT=Change of Temperature in water=5.3 (29.5-24.2)
Q=100x1x5.3
Therefore Q=530
Next, I used the Q to calculate the specific heat capacity of the unknown metal.
Q=mCdeltaT, with the variables changed to Q/m*deltaT=c
Where
Q=Heat Gained by Water/Lost by metal (530)
m=Mass of metal (86.79 g)
deltaT=This is what I am unsure about. Would the heat lost by the metal be equivalent to the heat gained by the water? Which would equal to 5.3 C.
If I calculate using that assumption for Delta T the answer equals 1.15 c/ g cal which is quite high for the specific heat capacity of a metal.
Was my process correct?
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