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Why does low pressure cause water to boil?

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As pressure increases, so does the boiling temperature. Pressure cookers are used in cooking to raise the temperature at which liquids within will boil. Conversely, the lower atmospheric pressure on a mountain top makes it harder to get boiling water hot enough for good tea or coffee. read more

Without the aid of additional heat, the water inside the flask begins to boil. After a certain time, the boiling may cease. Explanation: The boiling point of a liquid is defined as the temperature at which the vapor pressure of the liquid is equal to the external pressure. read more

If the external pressure is low (high altitude) you can get water gas (boiling) at less temperature. Typically one experiment this problem when hiking and the external temperature is very low, don't seems to boil faster at 5000 m (15000 ft), water boiling at less than 185 °F even a quick soup taste worse. read more

The boiling point of a liquid depends on both temperature and pressure. As pressure increases, so does the boiling temperature. Pressure cookers are used in cooking to raise the temperature at which liquids within will boil. read more

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