The final temperature inside the calorimeter is 85 degC .
Given ,
one piece of copper jewelry at 105 deg.C has twice the mass of another piece at 45 deg.C .
heat capacity (C) of copper = 0.387 j/g.K
Through observing the given data, we can say,
Let us assume ,
The mass of lighter jewelry at 45 deg.C = X
The mass of the heavier jewelry at 105deg.C = 2X
Let, T be the final temperature when equilibrium is reached .
we know,
energy lost by heavier object = energy gained by lighter object
=> 2X ×C×(105-T) = X×C×(T-45)
=>2X×(0.387 ) ×(105-T) = X×(0.387)×(T-45)
=> 2( 105-T ) = T-45
=>210-2T = T -45
=>3T= 255
=>T = 85 degC
Hence the final temp inside the calorimeter is 85 degC .
<h3>
What is calorimeter? </h3>
It is an object or a device used for measure the heat flow , heat capacity of a chemical reaction . also it defines the physical changes of the reaction.
Learn more about Calorimeter here:
brainly.com/question/1407669
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