One piece of copper jewelry at 101°c has twice the mass of another piece, which is at 38.0°c. both pieces are placed inside a calorimeter of negligible heat capacity. what is the final temperature inside the calorimeter (c of copper=0.387 j/g. k)?

80.0°C will be the final temperature inside the calorimeter.

Explanation:

Heat lost by  the pace of jewelry  will be equal to heat gained by the another piece of the jewelry

Mass of piece-1=

Specific heat capacity of copper=  = 0.387 J/g.K

Initial temperature of the iron =

Final temperature = =T

Mass of piece-2=

Specific heat capacity of copper =  = 0.387 J/g.K

Initial temperature of the water =

Final temperature of water = =T

 (conservation of energy)

On substituting all values:

80.0°C will be the final temperature inside the calorimeter.

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