What is the effect on the boiling point of water if 1 mole of methyl alcohol is added to 1 dm³ of water? Why?
Understand the Problem
The question is asking for the effect on the boiling point of water when adding 1 mole of methyl alcohol to it, focusing on the concept of colligative properties, particularly how the presence of a nonvolatile solute affects boiling point elevation.
Answer
The boiling point decreases.
The boiling point of water decreases because methyl alcohol is volatile and increases the solution's vapor pressure.
Answer for screen readers
The boiling point of water decreases because methyl alcohol is volatile and increases the solution's vapor pressure.
More Information
Adding a volatile solute like methyl alcohol increases vapor pressure due to its ability to evaporate more readily than water, thus lowering the boiling point.
Tips
A common mistake is assuming all solutes increase boiling point. Remember, volatile solutes can decrease it.
Sources
- Answer the following in one or two sentences... - shaalaa.com
- Answer: When 1 mole of methyl alcohol is added... - brainly.in
- Methyl alcohol effect on boiling point... - sarthaks.com
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