Why does the quality of snow not change after it becomes ice

Correct your issue as follows:

1. Snow does not turn directly into ice. The essence of snow is ice, which is formed when the temperature is below freezing.

2. Snow, ice and water all have the same chemical equation (except impurities), but the form is different.

3. Snow, ice, and water are only different in form, and the transformation between them only needs energy, and no other chemicals are needed, so there is no change in mass, but the density is different.

Personal opinion,

Mass is a fundamental property of matter.

Snow and ice are the same substance. The change of snow to ice is only a change in form, and the substance itself does not change, so the property of the substance, the mass, does not change either.

m=pv, snow turns to ice, density increases, and volume decreases. The mass does not change, in fact, the snow changes to ice only changes the energy, and does not change the mass.

If the quality is going to change, then is it increasing or decreasing?What's the matter with what increases or decreases?

The change of snow to ice is only a change in the form of matter, but the composition of molecules does not change, for example, water can be gas-liquid-solid, but it is all H2O, and the mass does not change when the state changes.

If you want to talk about change, then you should take into account the transformation with the outside world, but according to the landlord's intention, you should ignore this.

This is just a change in state, a change in volume and density

The quality is the same, but the volume of the cedar is soft.

Because the volume and mass remain the same.

Snow is actually fluffy ice flowers, and the gap in the middle is crushed away, and what is left is ice.

The composition of snow and ice is the same, both are formed by the condensation of water and impurity particles, but the formation time and distribution of particulate matter are different, the distribution of particles in the snow is relatively scattered, mostly hexagonal, the temperature of the snow rises after falling to the ground, it will melt partially, and the temperature does not rise very much, it is still below the freezing point, so it will condense, and it will become ice.

It's a hexagon like this in reality.

structure, throwing things of this shape randomly on the ground, even if it is vertical, it is all flat on the ground, and there are many hollows in the middle. These cutouts are not visible to the naked eye, but they do exist, so you will feel fluffy. However, after compaction, the special structure of snow ice crystals is destroyed or coupled with each other, and it is restored to the state of ordinary ice crystals.

It is the size of the molecular spacing that determines the state of the substance. So, when the snow is compacted, it turns into ice and carbon dioxide.

is compressed into dry ice.

It's the same.

Snow is colder when it melts because it absorbs heat, the heat in the air is sucked away, and people feel that the temperature is lower. There is a proverb among the people, called "the snow is not cold", which means that when it snows, it does not feel cold, but once the snow melts, it will become very cold. 1. The formation of snow In the winter in the north, we often see the scene of heavy snowfall.

The formation of blood is not an easy thing, it needs to meet several conditions at the same time, such as the atmosphere contains a certain amount of water vapor, the temperature in the clouds is too low, at this time, these small water droplets will directly condense into Xiaoice crystals, falling to the ground to form snowflakes.

Second, the snow is not coldWhen it snows, many children are very happy and hurry to go. Pull a sled and fly a snowman. When it snows, people don't feel cold, but happy.

This is because snow is a process of condensation, and the process of condensation releases heat, and although it looks like snow, the temperature does not make people feel very cold.

3. Melting snow and cold Whenever the weather is fine, although the sun is shining, the temperature is very low, and people will feel shivering, which is the phenomenon of chemical cold. This is because the snow begins to melt, and the melt itself absorbs a lot of heat from the surroundings. When it melts, snow water is formed, which also causes the humidity of the air to rise, making the air feel colder and the body temperature lower, so the snow melts colder than the snow.

Therefore, parents and friends with children around need to pay attention, when it snows, children go out to have snowball fights need to add thick clothes to them in case of cold, when the snow melts, don't look at the weather is sunny and don't add clothes to their grandchildren, you must pay attention to keeping warm. Dear readers and friends, do you understand the truth that snow does not turn cold when it falls? If you think this article is okay, please give it a thumbs up.

1. When snow melts, it is often a time of fine weather, and the low altitude is controlled by cold air pressure, and the temperature begins to drop. Therefore, although the sun is shining, the temperature is still at the "freezing point"; At the same time, the melting snow itself absorbs a lot of heat from the surrounding environment.

2. In addition, when snow melts, the air humidity will rise, thus reducing the warmth effect of clothes, and people will naturally feel colder. When compared to sunny weather, the feeling of cold is even more prominent, so when the snow melts, it is colder than when it snows.

Reasons why snow is not cold:

First, the atmosphere needs to contain colder ice crystal nuclei; The second is sufficient water vapor; The third is below 0 (freezing point). Before or during snowfall, the cold air is generally moist, and when the water vapor turns into snowflakes, it also releases a certain amount of heat, so the temperature does not drop much, which makes it not very cold before or during the snow.

When it snows, the liquid state of water becomes solid, which is the exothermic process, and when it is not cooled, it is the solid state of water that becomes liquid, which is the endothermic process, so it will be colder than when it snows.