24小时热门版块排行榜

返回列表

当前主题已经存档。

【有奖交流】积极回复本帖子，参与交流，就有机会分得作者 liangqiuxia33 的 1 个金币

liangqiuxia33

金虫 (小有名气)

应助: 0 (幼儿园)
金币: 807.2
散金: 13
帖子: 55
在线: 5.8小时
虫号: 450294
注册: 2007-11-03
专业: 药物分析

[交流] 求助:复合溶剂的介电常数计算方法

请问哪位虫友有复合溶剂的介电常数计算方法？出处在哪？是用体积百分数还是摩尔百分数？谢谢了！

回复此楼

» 猜你喜欢

求助，我做的标准曲线横坐标是浓度的lg值，如果我要算检出限的话该怎么算已经有0人回复
交流｜5% SP/NMP 导电浆料预分散经验（钠电 / 锂电用）已经有1人回复
物理化学论文润色/翻译怎么收费? 已经有261人回复
2026储能方向博士已经有3人回复
科研工作者面临的几个矛盾，你会怎么选已经有2人回复
阴离子交换膜电解槽电压衰减原因已经有0人回复
铜的植物缓蚀剂研究已经有1人回复
26年电池方向博士申请已经有2人回复
北京工业大学材料科学与工程学院《院士团队》招收工程专业博士研究生已经有0人回复
1 已经有21人回复
储能与电子材料课题组招收硕士 or 博士研究生——以色列理工-GTIIT联培已经有19人回复

1楼 2009-04-01 23:16:31

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

xmuxiaoyu

金虫 (著名写手)

ECEPI: 3
应助: 0 (幼儿园)
金币: 7208.6
散金: 31
红花: 8
帖子: 2376
在线: 1305.7小时
虫号: 413090
注册: 2007-06-26
专业: 电化学

★
liangqiuxia33(金币+1,VIP+0):谢谢 4-2 23:06

The problem of relative permittivity of mixed solvents (denoted by for simplicity)
was theoretically studied by Debye and Onsager [34]. Onsager derived the following
equation:
This equation can be written with good approximation as , indicating
that the permittivity of the mixed solvent changes linearly between A and
B, if it is plotted against the volume fraction of the constituent solvents. When
the interaction between the constituent solvents is weak, this linear relation holds
well. However, when the interaction is strong, a large deviation from linearity is
observed. Figure 2.9 shows the relationship between the relative permittivity and
the volume fraction of mixtures of water and organic solvents. Because acetonitrile,
acetone and tetrahydrofuran interact only weakly with water, near-linear relations
are observed for their mixtures with water. However, for DMSO and DMF,
which readily interact with water, large deviations from linearity are observed.

公式贴在这里乱码，给你的邮箱地址我，我给你发过去