如果一种组分改变另一组分的蒸气压，或者说，一种组分的挥发度取决于它在混合物中的百分比，那么这一定律将归于失败。
If one component changes another component's vapor pressure, or if the volatility of a component is dependent on its percentage in the mixture, the law will fail.
当一种多组分液体受热时，每一组分的蒸气压将会升高，因而导致总蒸气压升高。
When a multi-component liquid is heated, the vapor pressure of each component will rise, thus causing the total vapor pressure to rise.
拉乌尔定律假定，一种组分按其在混合物中百分比及其纯净物的蒸气压参与形成混合物总蒸气压。
Raoult's law assumes that a component contributes to the total vapor pressure of the mixture in proportion to its percentage of the mixture and its vapor pressure when pure.
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