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What is the effect of adding a non-volatile solid to a solvent on...
What is the effect of adding a non-volatile solid to a solvent on the freezing point of the solvent, according to Raoult's law?
Options
- AThe freezing point of the solvent increases.
- BThe freezing point of the solvent decreases.
- CThe freezing point of the solvent remains unchanged.
- DThe freezing point of the solvent depends on the nature of the solute.
Correct answer
B. The freezing point of the solvent decreases.
Step-by-step solution
According to Raoult's law, when a non-volatile solid is added to the solvent, its vapour pressure decreases, and as a result, the freezing point of the solvent decreases.