A chemist wants to calculate the amount of heat that is absorbed by a sample of copper as it is melted. Which constant should sh

Question

Masja [62]

4 years ago

15

A chemist wants to calculate the amount of heat that is absorbed by a sample of copper as it is melted. Which constant should sh

e use?

Chemistry

2 answers:

Gnesinka [82] · Answer 1 · 2021-11-23T08:16:11+03:00

Gnesinka [82]4 years ago

7 0

Answer:

Hfus

Explanation:

This is correct on edge.

Volgvan · Answer 2 · 2021-11-23T06:36:16+03:00

She needs to use the heat of fusion (ΔH(fusion)) and the equation q=mΔH(fusion) or q=nΔH(fusion) depending on whether or not ΔH(fusion) is given in J/g or J/mol. The reason why temperature is absent from the equation is that temperature does not change at a phase change, only the enthalpy does.

I hope his helps. Let me know in the comments if anything is unclear.