Why is it cold when we breathe out smoke?
To explain this phenomenon, first try a small experiment like this: put salt continuously into a glass of water and stir well.
To explain this phenomenon, first try a small experiment like this: put salt continuously into a glass of water and stir well.
Photo: cbc.ca
Initially, the amount of new salt put into the cup will dissolve; until the amount of salt is removed even though it is stirred and strong, the amount of salt will not dissolve. This phenomenon is called saturation.
Air and water have the same characteristics. The amount of water vapor that air can tolerate has a certain degree.
But the ability of cold air to tolerate steam is much lower than hot air, so in the cold winter, the air vapor in the air by humans and exhaled animals will not be absorbed by outside air collecting more; This series of steams that catch cold will condense into tiny droplets and turn into white mist.
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The north received cold air to strengthen and recur cold weather Tropical depressions come ashore, many places are heavy rain The North receives cold air, the Central is capable of heavy rain Cold air and circulation of storms cause heavy rain in the Central region In December, the North received 4 - 5 cold air waves Cold air intensifies, the North welcomes from the night The North is about to welcome a deep cold under 11 degrees The North received more intense cold waves