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Water boils when the vapor pressure due to the temperature of the water is equal to the pressure outside. The air pressure on mountains is slightly less because there is less atmosphere above you, so water boils at a lower temperature (only by a few degrees, though) at higher altitudes. Because of this, you need to boil food at higher altitudes longer to compensate and make sure it is cooked as much as if you boiled the same food at a higher temperature at a lower altitude for a shorter amount of time.

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Which took more time heating the water from room temperature to boiling point or boiling all the water away?

Boiling all the water away would take more time than heating the water from room temperature to boiling point. This is because during the boiling process, the water needs to be heated from boiling point to overcome the latent heat of vaporization to turn it into steam, which takes more time compared to heating it from room temperature to boiling point.


When you change the amount of a substance the time it takes to reach the boiling point then what happens?

The lower the amount of substance, the faster it reaches the boiling point. The more the amount of substance, the longer it takes to reach the boiling point. Hope that this is what you wanted to know! :)


Why boiling takes longer time than melting?

Boiling takes longer than melting because it requires more energy to break the intermolecular bonds in a substance and convert it from a liquid to a gas. In contrast, melting only requires enough energy to weaken the forces that hold the molecules together in a solid. The process of boiling involves the entire substance reaching its boiling point, whereas melting can occur at specific points within the substance.


What is the time needed for water to boil and the effect of adding salt?

The time needed for water to boil depends on various factors such as the heat source and the amount of water. Generally, it takes around 5-10 minutes for water to boil. Adding salt to water increases its boiling point, meaning it takes longer for saltwater to reach boiling point compared to plain water. However, the difference in boiling time is minimal and may not be noticeable in everyday cooking.


How does the amount of water put into a kettle affect the time it takes to boil?

The more water you put into the kettle, the longer it will typically take to boil. This is because more water requires more energy to heat up to boiling temperature. Conversely, less water will heat up faster because there is less volume to heat.

Related Questions

Which took more time heating the water from room temperature to boiling point or boiling all the water away?

Boiling all the water away would take more time than heating the water from room temperature to boiling point. This is because during the boiling process, the water needs to be heated from boiling point to overcome the latent heat of vaporization to turn it into steam, which takes more time compared to heating it from room temperature to boiling point.


When you change the amount of a substance the time it takes to reach the boiling point then what happens?

The lower the amount of substance, the faster it reaches the boiling point. The more the amount of substance, the longer it takes to reach the boiling point. Hope that this is what you wanted to know! :)


Why does sea water take more time to boil than fresh water?

The increased salt content raising the boiling point of the water, and so it takes longer to reach boiling temperature.


Why does a substance take longer to boil than melt?

because substances boil at a higher temperature than when it melts. therefore, boiling takes more energy than melting and more energy takes more time.


How much time do you microwave water to get you t to a boiling point?

it takes about 4 to 5 min..


Why boiling takes longer time than melting?

Boiling takes longer than melting because it requires more energy to break the intermolecular bonds in a substance and convert it from a liquid to a gas. In contrast, melting only requires enough energy to weaken the forces that hold the molecules together in a solid. The process of boiling involves the entire substance reaching its boiling point, whereas melting can occur at specific points within the substance.


What is the time needed for water to boil and the effect of adding salt?

The time needed for water to boil depends on various factors such as the heat source and the amount of water. Generally, it takes around 5-10 minutes for water to boil. Adding salt to water increases its boiling point, meaning it takes longer for saltwater to reach boiling point compared to plain water. However, the difference in boiling time is minimal and may not be noticeable in everyday cooking.


How does the amount of water put into a kettle affect the time it takes to boil?

The more water you put into the kettle, the longer it will typically take to boil. This is because more water requires more energy to heat up to boiling temperature. Conversely, less water will heat up faster because there is less volume to heat.


When you cook pulses at mountain it will take more time or less than at sea level?

on mountains the atmospheric temprature decreases and hence the boiling point of water decreases . so we have to cook pulses on mountains in pressure cookers and not in ordinary vessels. therefore, it will more time


Why pure water is less time to boil than water with salt?

Pure water boils faster than water with salt because adding salt elevates the boiling point of water. This means that it takes longer for the salty water to reach the higher temperature needed for boiling compared to pure water.


Why it takes longer time to cook dhal when sodium chloride is added?

It is probable only an illusion; the variation of the boiling point is minimal.


Does the water boil faster with more water?

Slower, the more water, the more time required to reach boiling temp.