# Which boil the faster one cup of water or two cups of water?

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What happens if you boil your jewelry?

## Which took longer to boil 1cup of water or 2 cups of water?

It takes 90 seconds to boil 1 cup (250ml) of 59°F (15°C) water, in a 1 kWh (kilowatt-hour) efficient water heater. It takes 2.5 minutes to boil 2 cups of water, and 5 minutes to boil 4 cups of water. But, we don’t normally use very efficient water heaters, so in real life it usually takes a bit longer.

## Does double the water take double the time to boil?

The time is proportional to the mass of water, so if you double the mass of water you double the time needed to boil it. The amount of energy needed to boil a certain amount of water from a certain initial temperature, scales linearly with the amount of water.

## How long does it take for a cup of water to boil?

Wow so complicated–here is what I have learned after cooking for 20 years and majoring in physical sciences at the UofA: So it takes about 5-7 min on high for a cup of water to come to a quiet boil on a stove top.

## Does adding things to water make it boil faster?

In fact, adding salt does the very opposite of making water boil faster. Instead, it makes it take longer for the water to boil! The salt actually increases the boiling point of the water, which is when the tendency for the water to evaporate is greater than the tendency for it to remain a liquid on a molecular level.

## How long does it take to boil 1 cup of water in the microwave?

Based on the wattage of your microwave, set the time for boiling in accordance with this and the amount of water you plan to boil. Going off of this time will be the safest way to ensure boiling without injury. Microwaving water should take 1-3 minutes for one cup of water, depending on the wattage and elevation level.

## Does a kettle boil quicker with less water?

Because the heat generated in the element is inversely proportional to its resistance, the heat generated by the convection will increase slightly. … The heat has to raise the water from room temperature to boiling point, so the only thing that can alter the time taken to boil is the amount of water in the kettle.

## Is twice boiled water bad for you?

Does twice boiled water taste different? Okay, so we’ve shown that you don’t need to worry about reboiling water more than twice. It’s perfectly safe and will not be hazardous to your health in the short or the long term.

## Why does less water heat faster?

It takes less energy to bring water to the boiling point when atmospheric pressure is lower. Water will boil at a lower temperature at a higher altitude because of less energy.

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## How long should it take 3 cups of water to boil?

So, about 2 minutes per cup of water. (I always measure the water by cup when adding to the tea kettle, because I like my tea to have a consistent strength.) The general rule seems to hold with an open sauce pan as well. I often have to boil one cup of water for a recipe; it takes two minutes.

## How long does it take to boil 2 cups of water in the microwave?

For how long should water be microwaved to boil? In a decent, full-powered U.S. microwave, I boil 1.5-2 cups of water by putting it in for 2 minutes.

## How long does it take for 1 cup of boiling water to evaporate?

It takes 5 minutes to reach the boiling point if we boil water. It will take another 20 minutes or so before the water has completely evaporated, which is good, because it gives us time to save our kettle.