What affect does altitude have on boiling point?

In summary, altitude and boiling point have an inverse relationship, with higher altitudes resulting in lower boiling points. This is due to the lower air pressure at higher altitudes, which allows water molecules to escape more easily and therefore boil at a lower temperature. The boiling point at a specific altitude can be calculated using the Clausius-Clapeyron equation, but this is not necessary for everyday use. Cooking times can also be affected by altitude, as foods may take longer to cook due to the lower boiling point. There are other factors besides altitude that can affect boiling point, such as the composition of the liquid and the type of container used.
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[SOLVED] What affect does altitude have on boiling point?

What affect does altitude have on boiling point?
 
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  • #2
The higher the altitude the lower the partial pressure of H2O so the boiling point is lower.
 
  • #3
Thanks so much! You're awesome. 8)
 

1. What is the general relationship between altitude and boiling point?

The higher the altitude, the lower the boiling point. This means that water will boil at a lower temperature at higher altitudes compared to sea level.

2. How does air pressure affect boiling point at different altitudes?

At higher altitudes, the air pressure is lower. This means that the pressure pushing down on the surface of the water is also lower, allowing the water molecules to escape into the air more easily and therefore boil at a lower temperature.

3. Is there a specific formula for calculating the boiling point at a given altitude?

Yes, the boiling point at a given altitude can be calculated using the Clausius-Clapeyron equation, which takes into account the temperature, atmospheric pressure, and the altitude. However, this equation is typically used for more precise calculations and is not necessary for everyday use.

4. How does altitude affect the cooking time of foods?

Since water boils at a lower temperature at higher altitudes, foods may take longer to cook because they are not exposed to the same high temperatures as they would be at sea level. This is why cooking instructions may need to be adjusted for high altitude locations.

5. Are there any other factors besides altitude that can affect boiling point?

Yes, the composition of the liquid can also affect boiling point. For example, salt and other substances dissolved in water can raise the boiling point, while impurities can lower it. The type of container used can also affect boiling point, with thinner materials allowing heat to escape more easily and therefore reducing the boiling point.

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