Ethanol is warmed from 4.5C to 50.2C, how much energy was required?
2018-01-09 12:16 pm
Is this enough information to complete the question? 5 stars for best answer
回答 (1)
2018-01-09 12:25 pm
✔ 最佳答案
Insufficient information has been given. You have to know the mass (m) in grams of the ethanol and its specific heat.Refer to: http://www2.ucdsb.on.ca/tiss/stretton/database/specific_heat_capacity_table.html
Specific heat of ethanol (ethyl alcohol) = 2.460 J/(g°C)
Energy required
= m c ΔT
= m × 2.460 × (50.2 - 4.5) J
= 112.422m J
收錄日期: 2021-04-18 18:01:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180109041609AAH9May