Why is the boiling point of water less than a standard atmospheric pressure? The boiling point of water is 100 degrees, but now it's 97 degrees.

Why is the boiling point of water less than a standard atmospheric pressure? The boiling point of water is 100 degrees, but now it's 97 degrees.

I. The atmospheric pressure is lower than the standard atmospheric pressure, and the water molecule activity is intense, resulting in the decrease of the boiling point of water
II. Impurities with low boiling point in water

I. The atmospheric pressure is lower than the standard atmospheric pressure, and the water molecules move violently, resulting in the decrease of the boiling point of water
II. Impurities with low boiling point in water

The temperature of a liquid can boil as long as it reaches its boiling point The above sentence is correct, please also teach shrimp, thank you! State the reason As long as the temperature of the liquid reaches the boiling point, the liquid will boil. Was this sentence correct? I would also like to ask everyone to teach me. Thank you! Write the reason

No, there are two conditions for the liquid to boil: reach boiling point and continue to absorb heat
If the temperature of the liquid has reached the boiling point, but does not continue to absorb heat, will not boil.
For example: a small basin filled with water floats on the water surface of the pot to heat the pot. When the water in the pot boils, the water in the pot does not boil. This is because, when the water in the pot boils, the temperature is 100°C. At this time, although the water in the pot also reaches 100°C, it can not continue to absorb heat because the temperature is the same as the water in the pot, so it does not boil.