F3 phy
2010-06-17 5:58 am
200g water at 80 degree is added to 400g of water at 20 degree. if there is no heat loss to the surroundings, the temperature of the final mixture will be????
回答 (1)
2010-06-17 6:06 am
✔ 最佳答案
0.2 * C * (80 - T) = 0.4 * C * (T - 20)16 - 0.2 T = 0.4T - 8
0.6T = 24
T = 40 degree
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https://hk.answers.yahoo.com/question/index?qid=20100616000051KK01471