What is the reason why snow turns cold into snow heat?

Snow is colder when it melts, because melting absorbs heat, the heat in the air is absorbed, and people will feel the temperature is lower. There is a folk proverb called? Is it cold when it snows? I don't feel cold when it snows, but once the snow melts, it will become very cold. There are some basic physical phenomena in it. The following small series will take you to understand the principle that snow does not cool down.

First, the formation of snow In the winter in the north, we often see the scene of heavy snow. It is not easy to form blood. Several conditions need to be met at the same time. For example, there is a certain amount of water vapor in the atmosphere and the temperature in the cloud is too low. At this time, these small water droplets will directly condense into small ice crystals and fall to the ground to form snowflakes.

Second, it's not cold when it snows. Many children were very happy and went in a hurry. A snowman pulling a sled. People don't feel cold when it snows, but they feel very happy. This is because snow is a sublimation process, which releases heat. Although it looks like snow, the temperature will not make people feel very cold.

Third, when the weather is fine, although the sun is shining high, the temperature is very low, and people will feel shivering. This is what people call chemical cooling. This is because the snow begins to melt, and the melting itself will absorb a lot of heat around it. The formation of snow water after melting will also lead to an increase in air humidity, making people feel that the air is colder and the somatosensory temperature is lower. Therefore, when the snow melts, it is even colder than when it snows.

Therefore, parents and friends with children need to pay attention. When it snows, children need to be given thick clothes to prevent colds when they go out for snowball fights. When the snow melts, don't add clothes to them even if it is sunny. Be sure to keep warm. Dear readers and friends, do you understand that snow is not cold? If you think this article is well written, please give Bian Xiao a compliment.