Does Water Boil at 100 Degrees Celsius? Explaining the Effects of Altitude

Learn why water boils at 100°C at sea level but changes with altitude and atmospheric pressure in this quick explanation.

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A kettle boils at 100 degrees Celsius at sea level, but this can change due to various factors such as altitude and atmospheric pressure. At higher elevations, the boiling point of water decreases. So, if you're significantly above sea level, water would boil at less than 100 degrees Celsius.

FAQs & Answers

  1. Why does water boil at lower temperatures at higher altitudes? At higher altitudes, atmospheric pressure is lower, which reduces the temperature at which water boils, causing it to boil below 100 degrees Celsius.
  2. Does a kettle always boil water at 100 degrees Celsius? No, while a kettle boils water at 100 degrees Celsius at sea level, the boiling point can be lower at higher elevations due to reduced atmospheric pressure.
  3. How does atmospheric pressure affect boiling point? Higher atmospheric pressure increases the boiling point of water, while lower pressure, such as at high altitudes, decreases it.

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