How much heat must be added to 3.05 kg of copper to change it from a solid at 1358 K to a liquid at 1358 K?
回答 (2)
2018-03-13 11:35 pm
✔ 最佳答案
Mass, m = 3.05 kgLatent heat of fusion, Lf = 20.7 × 10⁴ J/kg
Heat added
= m Lf
= 3.05 × (20.7 × 10⁴) J
= 6.31 × 10⁵ J
2018-03-13 11:49 pm
hot heat
收錄日期: 2021-04-24 01:00:31
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