Boiling eggs on a plateau several thousand meters above sea level, the water boils for a long time, and the eggs are always not ripe. What is the reason?
Answer: The higher you are above the ground, the smaller the atmospheric pressure is. The boiling point of all liquids decreases with the decrease of air pressure, but increases with the increase of air pressure. It is about 97℃ at altitude 1 km, 9 1℃ at 3km, 80℃ at 6km and 70℃ at 9km. Therefore, the boiling point of water decreases with the increase of height. Due to the decrease of boiling point,