Ametal ball of mass 100 g is heated to 90°c and then cooled to 25°c. the heat lost in the process is 2.5 kj. another metal ball of mass 200 g is heated to 90°c and then cooled to 25°c. the heat lost in the process is 5.0 kj. what can be concluded from the data?

Explanation:

q = mCΔT

where q is heat,

m is mass,

C is specific heat capacity,

and ΔT is temperature change.

For the first ball:

2500 J = (100 g) C (90°C − 25°C)

C = 0.385 J/g/°C

For the second ball:

5000 J = (200 g) C (90°C − 25°C)

C = 0.385 J/g/°C

The two metals have the same specific heat, and are likely the same metal (possibly copper or zinc).

d is the correct answer

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