Final temperature?
2016-10-04 4:40 am
A 421 g sample of water has an initial temperature of 19.0°C. After 80.6 kJ of energy is added to the water sample, what will be its final temperature?
回答 (1)
2016-10-04 10:18 am
✔ 最佳答案
Mass of water, m = 421 gSpecific heat capacity, c = 4.18 J /g °C
Initial temperature, Ti = 19.0°C
Heat absorbed by water, E = 80.6 kJ = 80600 J
Let T°C be the final temperature.
E = m c ΔT
80600 = 421 × 4.18 × (T - 19.0)
T = 19.0 + [80600 / (421 × 4.18)]
Final temperature, T = 64.8°C
收錄日期: 2021-04-18 15:36:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20161003204004AAFa2Ye