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water has a lower vapor pressure than alcohol, so it requires more heat energy to cause it to evaporate.

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12y ago

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Why is water mixed alcohol lighter than fresh water?

Water mixed with alcohol is lighter than fresh water because alcohol is less dense than water. When alcohol is added to water, the overall density of the mixture decreases due to the lower density of alcohol, making the mixture lighter than fresh water.


Why does alcohol evaporate after than water?

Alcohol is evaporated first.


Why would an object float in water but sink in rubbing alcohol?

An object will float in water if its density is less than that of water. Rubbing alcohol has a lower density than water, so an object that sinks in rubbing alcohol likely has a higher density than the rubbing alcohol. This difference in density causes the object to sink in rubbing alcohol but float in water.


How does alcohol react to heat?

When alcohol is heated, it evaporates at a lower temperature than water. This means that when alcohol is heated, it will turn into vapor more quickly than water.


Why alcohol is lighter than water?

Alcohol molecules are less dense than water molecules. This is due to differences in the molecular structure and the amount of space between alcohol molecules compared to water molecules. As a result, alcohol floats on top of water because it is less dense.


Will objects float better in rubbing alcohol or water?

Objects will float better in rubbing alcohol than in water because rubbing alcohol has a lower density than water. This means that objects will displace less liquid in rubbing alcohol, making it easier for them to float.


Why is rubbing alcohol colder than water when you blow on it?

The evaporation is quicker than water


Which one has high vapour pressure water or alcohol?

Alcohol typically has a higher vapor pressure than water at a given temperature due to its lower molecular weight and weaker intermolecular forces. This means that alcohol evaporates more readily than water.


Is alcohol more acidic than water?

Generally yes, water has a higher Ka value than most alcohols including beverage alcohol.


Why won't an ice cube float in alcohol?

Ice cubes typically float in water because ice is less dense than liquid water. However, some types of alcohol have a lower density than water, which means ice will sink in alcohol since it is denser than the alcohol.


Would pure isopropyl alcohol evaporate more quickly or slowly that a mixture of isopropyl alcohol and water?

Pure isopropyl alcohol would evaporate more quickly than a mixture of isopropyl alcohol and water. This is because water has a higher boiling point than isopropyl alcohol, which would slow down the evaporation process of the mixture compared to pure isopropyl alcohol.


Why does it take more energy to make water evaporate than alcohol?

Alcohol starts evaporating at a lower temperature than water. therefore it evaporates quicker