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本文说明用吕查德里原理解释温度对离子型盐类溶解度的影响时,应注意区分积分溶解热与微分溶解热。由于大多数盐类的饱和微分溶解热是正值,所以其溶解度随温度升高而增加。
This article shows that using Ludwig’s principle to explain the effect of temperature on the solubility of ionic salts, one should pay attention to the distinction between integral heat of solution and differential heat of solution. Since most salts have a positive differential heat of solution, their solubility increases with increasing temperature.