# What temperature does water boil at below sea level?

At another extreme, in Death Valley, Calif. – the lowest point in the U.S., at 282 feet below sea level – water boils at slightly above 212 degrees. The lower atmospheric pressures at high elevations affect cooking and baking, too, which is why many recipes and mixes come with special “high altitude” directions.
A.

### What is the boiling point of water in high altitude?

At sea level, water boils at 212 °F. With each 500-feet increase in elevation, the boiling point of water is lowered by just under 1 °F. At 7,500 feet, for example, water boils at about 198 °F. Because water boils at a lower temperature at higher elevations, foods that are prepared by boiling or simmering will cook at
• #### Do things cook faster or slower at high altitude?

As altitude increases and atmospheric pressure decreases, the boiling point of water decreases. To compensate for the lower boiling point of water, the cooking time must be increased. Turning up the heat will not help cook food faster.
• #### Can you get water hotter than 212 degrees?

After water changes from a liquid to a gas (at 212 degrees Fahrenheit) it can actually heat up much hotter than that. In the gas form, water molecules are spread out and have a lot of room to move and get much hotter than the other two phases (liquid and ice). And water freezes at 32 degrees Fahrenheit.
• #### What temperature does water boil at in a vacuum?

When we maintain vacuum (pressure below atmospheric pressure) the water begins to boil at temperature lower than 100 degree Celsius. Here is table showing the variation of boiling point of water with pressure.
B.

### Why is it hard to boil water in high altitude?

At higher altitudes, air pressure is lower. When atmospheric pressure is lower, such as at a higher altitude, it takes less energy to bring water to the boiling point. Less energy means less heat, which means water will boil at a lower temperature at a higher altitude.
• #### How does altitude affect the freezing point of water?

As the atmospheric pressure decreases, the boiling point of a liquid decreases since it takes less pressure for the molecules to leave the liquid. So the result is that at high altitude, the boiling point is lower than at sea level. Decreasing pressure also increases the freezing point, only not by very much.
• #### What temperature does water start to evaporate?

When liquid water meets dry air, it is not in equilibrium; water molecules evaporate off the surface until the amount of water in the air creates enough vapour pressure to achieve equilibrium. When water is heated to a temperature of 100C, the vapour pressure equals that of sea-level air pressure.
• #### Why does it take longer to cook at a higher altitude?

Cooking takes longer because water and other liquids evaporate faster and boil at lower temperatures. At sea level, water boils at 212 °F, but at an altitude of 7,500 feet, it boils at about 198 °F. Foods that are prepared by boiling or simmering will cook at a lower temperature, and it will take longer to cook them.
C.

### How does altitude affect the melting point of water?

As the atmospheric pressure decreases, the boiling point of a liquid decreases since it takes less pressure for the molecules to leave the liquid. So the result is that at high altitude, the boiling point is lower than at sea level. Decreasing pressure also increases the freezing point, only not by very much.
• #### Why does water boil faster at a higher altitude?

At higher altitudes, air pressure is lower. When atmospheric pressure is lower, such as at a higher altitude, it takes less energy to bring water to the boiling point. Less energy means less heat, which means water will boil at a lower temperature at a higher altitude.
• #### What is the boiling point of water at sea level?

At sea level, water boils at 212 °F. With each 500-feet increase in elevation, the boiling point of water is lowered by just under 1 °F. At 7,500 feet, for example, water boils at about 198 °F. Because water boils at a lower temperature at higher elevations, foods that are prepared by boiling or simmering will cook at
• #### What condition will allow water to evaporate?

Evaporation of water occurs when the surface of the liquid is exposed, allowing molecules to escape and form water vapor; this vapor can then rise up and form clouds.

Updated: 2nd November 2019