To determine the specific heat of an object, a student heats it to 100 degree C

Question

To determine the specific heat of an object, a student heats it to 100 degree C in boiling water. She then places the 100 g object in a 164 g aluminum calorimeter containing 123 g of water. The aluminum and water are initially at a temperature of 19.5 degree C, and are thermally insulated from their surroundings. If the final temperature is 24.0 degree C, what is the specific heat of the object? Express your answer using two significant figures. Referring to the table, identify the material in the object. Beryllium Aluminum Glass Silicon Iron (steel) Copper

Explanation / Answer

heat supplied total as heat lost by water = heat gained by AL + water

m1c1dT = m2c2 DT + m3C3 DT

here we need to fine C1 = ?

c2 is the sp hat of Aluminium

C3 is the sp hat of water

so 100* c1 *(100-24) = (164 * 0.9 * (24-19.5)) + (123 * 4.186 * (24-19.5))

C1 = 392 J/kg/K

this is C0pper

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