问题
问答题
水的比热容是4.2×103J/（kg•℃）．质量为5kg的水，温度从15℃升高到95℃，需要吸收多少热量？
答案
Q吸=cm△t
=4.2×103J/（kg•℃）×5kg×（95-15）℃
=1.68×106J
答：水需要吸收1.68×106J的热量．
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水的比热容是4.2×103J/（kg•℃）．质量为5kg的水，温度从15℃升高到95℃，需要吸收多少热量？
Q吸=cm△t
=4.2×103J/（kg•℃）×5kg×（95-15）℃
=1.68×106J
答：水需要吸收1.68×106J的热量．
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