室温下，将\(m{1mol}\)的\(m{CuSO_{4}·5H_{2}O(s)}\)溶于水会使溶液温度降低，热效应为\(m{\triangle H_{1}}\)，将\(m{1mol}\)的\(m{CuSO_{4}(s)}\)溶于水会使溶液温度升高，热效应为\(m{\triangle H_{2}}\)；\(m{CuSO_{4}·5H_{2}O}\)受热分解的化学方程式为：\(m{CuSO_{4}·5H_{2}O(s)\overset{∆}{=} cCuSO_{4}(s)+5H_{2}O(l)}\)，热效应为\(m{\triangle H

室温下，将\(\rm{1mol}\)的\(\rm{CuSO_{4}·5H_{2}O(s)}\)溶于水会使溶液温度降低，热效应为\(\rm{\triangle H_{1}}\)，将\(\rm{1mol}\)的\(\rm{CuSO_{4}(s)}\)溶于水会使溶液温度升高，热效应为\(\rm{\triangle H_{2}}\)；\(\rm{CuSO_{4}·5H_{2}O}\)受热分解的化学方程式为：\(\rm{CuSO_{4}·5H_{2}O(s)\overset{∆}{=} cCuSO_{4}(s)+5H_{2}O(l)}\)，热效应为\(\rm{\triangle H_{3}}\)。下列判断正确的是

A．\(\rm{\triangle H_{2} > \triangle H_{3}}\)

B．\(\rm{\triangle H_{1} < \triangle H_{3}}\)

C．\(\rm{\triangle H_{1}+\triangle H_{3}=\triangle H_{2}}\)

D．\(\rm{\triangle H_{1}+\triangle H_{2} > \triangle H_{3}}\)

【考点】化学反应中的能量转化,反应热和焓变,用盖斯定律及有关计算

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难度：较难

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