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Why would you get more water on a penny than rubbing alcohol?
Water has a higher surface tension than rubbing alcohol, which allows it to form a more cohesive droplet that can hold together better on the surface of a penny. Additionally, water is more polar than rubbing alcohol, leading to stronger adhesive forces between the water molecules and the penny's surface. This results in water being able to "stick" and accumulate more effectively than rubbing alcohol.
Does alcohol less surface attention than water?
Yes, alcohol generally has lower surface tension than water. This is due to the molecular structure of alcohol, which has a hydroxyl (-OH) group that disrupts hydrogen bonding compared to water molecules, leading to decreased cohesive forces. As a result, alcohol can spread more easily across surfaces than water.
Is Methanol a more cohesive liquid than water?
Yes, methanol is generally considered to be a more cohesive liquid than water. This is because methanol has a lower surface tension and higher vapor pressure compared to water, leading to stronger intermolecular forces that promote cohesion.
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.
What has stronger intermolecular bonding regular water soapy water or an alcohol water mixture?
Regular water has stronger intermolecular bonding due to its hydrogen bonding capability, which is more pronounced than in soapy water or an alcohol-water mixture. Soapy water contains surfactants that disrupt these hydrogen bonds, while an alcohol-water mixture has weaker hydrogen bonds compared to pure water due to the presence of alcohol molecules that interfere with water's cohesive forces. Therefore, regular water exhibits the strongest intermolecular bonding among the three.
Is alcohol more acidic than water?
Generally yes, water has a higher Ka value than most alcohols including beverage alcohol.
Would distilled water be more cohesive than salt water?
Distilled water would be more cohesive than salt water because salt water contains dissolved ions that disrupt the hydrogen bonding between water molecules, reducing cohesion. In distilled water, there are no dissolved ions to interfere with the hydrogen bonding, allowing water molecules to be more attracted to each other and exhibit greater cohesion.
Why does friction act more on object moving through water than the one moving through air?
Water has high cohesive forces
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
Why salt water is more cohesive than tap water?
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Why does evaporating alcohol cool faster than water?
Evaporating alcohol cools faster than water because alcohol has a lower boiling point than water, which means it evaporates more easily. As alcohol evaporates, it absorbs more heat from its surroundings, causing a cooling effect. This rapid absorption of heat makes alcohol evaporate faster and therefore cool more quickly than water.
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.
