# What has to be equal for water to boil?

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Boiling. A liquid boils at a temperature at which its vapor pressure is equal to the pressure of the gas above it. The lower the pressure of a gas above a liquid, the lower the temperature at which the liquid will boil.

## What process causes water to boil?

As a liquid is heated, its molecules absorb heat and move faster. When the liquid starts to boil, bubbles of vapor form within the liquid and rise to the surface. The temperature that causes this to happen is known as the boiling point of a liquid.

## What is the degrees for water to boil?

It seems like one of those basic science facts: Water boils at 212 degrees Fahrenheit (100 degrees Celsius), right? Well, not always. It depends on where you’re doing the boiling. In fact, water will boil at about 202 degrees in Denver, due to the lower air pressure at such high elevations.

## Why is evaporated water so clean?

Evaporation is the process where a liquid, in this case water, changes from its liquid state to a gaseous state. … During the process of evaporation, impurities in the water are left behind. As a result, the water that goes into the atmosphere is cleaner than it was on Earth.

## Can a laser boil water?

Scientists have used a powerful X-ray laser to heat water from room temperature to 100,000 degrees Celsius in less than a tenth of a picosecond (millionth of a millionth of a second). … “It is not the usual way to boil your water,” said Caleman.

## Is all boiling water the same temperature?

The temperature at which water boils isn’t the same everywhere. Boiling point depends on pressure. At sea level, water boils at 100 °C (212 °F) and freezes at 0 °C (32 °F). If you boil water at a higher pressure (below sea level, for example), the boiling point would be higher than 100 °C .

## How do I know if water is boiling?

Look at the water. If large bubbles are rising from the bottom of the pot to the surface, the water is boiling. NOTE: Small bubbles that stay at the bottom or sides of the pot are air bubbles present in the water; they do not necessarily indicate that boiling is imminent.

## How do you get 175 degree water?

The easiest way is to always bring the water to a boil (212 degrees) then let it “rest” until it reaches 175 — the time it takes to cool down to 175 will be the same regardless of cooking method & variations in microwaves.

## Is evaporated water pure water?

3 Answers. Water evaporated from sea water is water vapour. After condensation it is just pure water and no dissolved salts. It should be okay for drinking !

## Is evaporated and condensed water pure?

Water vapour from the air condenses on the coils and drips into a tank. The condensed water is pure because when the water originally evaporated into the air, it left its impurities and minerals behind.

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## What draws water back to the earth?

Condensation and gravity are the two driving forces that draw water back to Earth.