亚硝酸钠的溶解焓
Enthalpy of Solution of Sodium Nitrite.
作者信息
Cases Jaime C, Parker Vivian B, Kilday Marthada V
机构信息
Departamento de Química, Universidad de Chile, Casilla 2777, Santiago, Chile.
Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
出版信息
J Res Natl Bur Stand (1977). 1977 Jul-Aug;82(1):19-28. doi: 10.6028/jres.082.003.
An adiabatir solution calorimeter was used to measure enthalpies of solution and dilution of sodium nitrite in water in the concentration range of 5 to 200 mmol · kg. For the solution reaction where molality, = 100 mmol · kg, Δ = -1.394 ± 0.014 J · g · K (-23.0 ± 0.2 cal · mol · K). Other Δ values for some dilution reactions were also measured. The value selected for the enthalpy of solution at infinite dilution is Values for the relative apparent molal heat content , are tabulated and the enthalpy of transition and of fusion derived from differential thermal analysis measurements are also given.
使用绝热量热计测量了亚硝酸钠在水中浓度范围为5至200 mmol·kg时的溶解焓和稀释焓。对于质量摩尔浓度(m = 100 mmol·kg)的溶解反应，(\Delta H = -1.394 \pm 0.014 J·g^{-1}·K^{-1} (-23.0 \pm 0.2 cal·mol^{-1}·K^{-1}))。还测量了一些稀释反应的其他(\Delta H)值。无限稀释时的溶解焓所选值为……给出了相对表观摩尔热含量(\varphi_{\Delta H})的值，并给出了由差示热分析测量得出的转变焓和熔化焓。
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