试题与答案

质量为10kg的水,温度从100℃降低到80℃时,放出的热量是多少.水的比热容为

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题目:

质量为10kg的水,温度从100℃降低到80℃时,放出的热量是多少.水的比热容为:4.2×103J/(kg•℃).

答案:

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