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用溶解量热法,以KIO_4和KOH组成的弱碱性溶液为量热溶剂,设计3个不同的热化学循环,用RD-1型热导式自动量热计测定了MoO_3的标准生成焓,并推荐其值为ΔH_(t(moO_3))~0(298.15K)=-765.0±6.8kJ·mol~(-1)。
Three different thermochemical cycles were designed by using the calorimetry method and weak alkaline solution composed of KIO_4 and KOH as the quantitative heat solvent. The standard enthalpies of formation of MoO_3 were determined by RD-1 thermal conductivity auto-calorimeter, The value of ΔH_ (t (moO_3)) ~ 0 (298.15K) = - 765.0 ± 6.8kJ · mol ~ (-1) is recommended.