Here's why:
* Pressure: The most significant factor affecting the boiling point of water is pressure. At higher pressure, water needs more energy (higher temperature) to boil. This is why water boils at a lower temperature on mountains (lower air pressure).
* Impurities: Adding impurities like salt to water can raise its boiling point slightly.
* Intermolecular forces: While less impactful than pressure, things like the presence of dissolved ions or other molecules can affect the intermolecular forces within the water, slightly shifting the boiling point.
Standard Boiling Point:
The standard boiling point of water is 100°C (212°F) at 1 atmosphere of pressure (sea level).
Remember: The boiling point of water is the temperature at which its vapor pressure equals the surrounding atmospheric pressure, allowing it to transition from liquid to gas.
