How many calories will it take to raise the temperature of a 37 g gold chain from 20°C to 120°C?
回答 (3)
2017-07-04 4:58 pm
✔ 最佳答案
Mass of gold, m = 37 gHeat capacity of gold, c = 0.031 cal/(g°C)
Temperature raise, ΔT = (120 - 20)°C = 100°C
Energy needed = m c ΔT = (37 g) × [0.031 cal/(g°C)] × (100°C) = 115 cal
2017-07-04 4:15 pm
Molar heat capacity 25.418 J/(mol·K)
2017-07-04 4:11 pm
I can't do math. Numbers make me nerbvous!
收錄日期: 2021-05-01 13:08:19
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