How about putting 1 degree of ice in water of 1 degree Celsius

Whether it is one degree of ice or zero degree ice, it is necessary to explain the environmental variables, and in some cases, the water may freeze at 1 degree Celsius, just like in the alpine area, it is a reason that water boils at 70 or 80 degrees. As for your question, if you ignore the influence of the external environment, it can only be ice at 0 degrees, in fact, at 0 degrees, it is also the coexistence of ice water, not just the so-called real ice, under this condition, add the same amount or less than the amount of ice water to the one degree, its state is still ice water republic. There are no absolutes.

Ice and water coexist. Upstairs, you're just common sense.

Ice may have a temperature of 1 degree in water.

Don't talk nonsense if you don't know.

It's just a simple piece of ice below 0 degrees.

Ice in the water can be higher than 0 degrees.

It's advanced science.

I don't explain, and you won't understand either.

I am a teacher who teaches physics!!

Ice can't be 0 degrees because it melts and absorbs heat, and if H2O is above 0 degrees, it's liquid.

This classmate, what kind of book are you reading?

The question itself is wrong, you don't know, it's your teacher who corrects you.

Ice, only exists at or below 0 degrees!

Some comrades don't know what is still in that mess, what "ice and water coexist", fundamentally.

There is no ice. You say you're wrong!

1 degree isn't ice, it's water, isn't it?

The amount of ice and water did not change.

Ice at 0°C melts into water at 0°C, although both are at the same temperature, this transition process requires heat absorption, while the ambient temperature is also 0°C, and the ice has no heat to absorb, so the ice does not melt. Ice that is pure at normal atmospheric pressure has a melting point of 0°C and water solidifies at 0°C, although both have the same temperature, this transition process requires heat to be released, while the ambient temperature is still 0°C, and the water has no heat to release, so the water does not solidify.

Ice is a crystallization formed by the orderly arrangement of water molecules, which are joined together by hydrogen bonds to form a very "open" (low-density) rigid structure. The spacing between the O—O nuclei of the nearest water molecule is about 109°, which is very close to the bond angle of 109°28 in an ideal tetrahedron. The O-o spacing of each water molecule that is adjacent but not directly bound is much larger, and the farthest is reached.

Related information

Water above 4 is in line with thermal expansion and cold contraction. When the water is lower than 4, it shrinks and expands, resulting in a decrease in density, while when it is greater than 4, it resumes thermal expansion and contraction. This is one of the most important and valuable properties of water.

This is a very important point to ensure the existence of living things, when the water freezes, the density of ice is small, and it can float on the surface of the water, which can ensure the survival of underwater life.

When it's warm, the ice is on top and it's the first to thaw. But if the ice is denser than the water, the ice will continue to sink under the water, and it will not thaw when the weather is warm, and the water on it will continue to freeze until all the water becomes ice, and all aquatic life will not exist.

1. Put a piece of 0 degree Celsius ice into 0 degree Celsius water (the surrounding temperature is also 0 degrees Celsius), after a period of time (the surrounding temperature is still 0 degrees Celsius), what changes in the amount of ice and water?

The amount of ice and water did not change.

Ice at 0°C melts into water at 0°C, although both are at the same temperature, this transition process needs to absorb heat, while the ambient temperature is also 0°C, there is no heat for the ice to absorb, so the ice does not melt.

Water at 0°C solidifies into ice at 0°C, although both are at the same temperature, this transition process requires heat to be released, while the ambient temperature is still 0°C, and no heat is released from the water, so the water does not solidify.

It is common knowledge that when the temperature of the water reaches zero degrees Celsius, the water freezes and completes the phase transition from liquid to solid. Sometimes, however, water can be a bit weird: its temperature is well below zero degrees Celsius, but it doesn't freeze and remains liquid, but with a little vibration or other disturbances, such as ice crystals and other impurities, it will quickly freeze into ice.

Water like this, which does not freeze at temperatures well below zero degrees Celsius, is called "supercooled water", and some "supercooled water" can even reach temperatures of tens of degrees below zero. So why this strange phenomenon? Today we're going to talk about it.

At a standard atmospheric pressure, water must meet two conditions in order to change from a liquid state to a solid state, the first is that the temperature must be less than or equal to zero degrees Celsius, and the second is that there must be a crystal nucleus, both of which are indispensable.

So what is this crystal nucleus? Ice is actually a crystal, and the transformation of water from liquid to solid is the process of water crystallization. The crystallization process can only be completed by the presence of a solid, and this initial solid is called a crystal nucleus.

Generally speaking, the water we come into contact with contains a lot of impurities (water in nature also contains a large number of microorganisms, don't drink it), these impurities are used by water as crystal nuclei, when the temperature is low enough, water will adhere to these natural crystal nuclei and quickly crystallize and become solid.

And the reason why "supercooled water" does not freeze is because it lacks crystal nuclei. "Supercooled water" is usually pure water that is free of impurities, and since there is no solid substance in the water that can be used as crystal nuclei, it will not freeze even if the temperature is low enough. This explains the principle that when we add impurities that can act as crystal nuclei to the "supercooled water", the "supercooled water" freezes immediately.

Why, then, without adding impurities, just shake the "supercooled water" and it will also freeze? This is because pure water can also form ice cores on its own, but this requires certain conditions. From a physical point of view, in order for water to form a crystal nucleus, it must overcome an energy barrier from liquid to solid, which is called "grain boundary energy", while still water cannot spontaneously overcome "grain boundary energy", it needs additional energy.

When we vibrate the "supercooled water", we are actually injecting energy into the water. The initial crystal nuclei are formed in the "supercooled water" that has received energy, and once the crystal nuclei are formed, the rest of the water adheres to them and freezes rapidly at a geometric rate. The lower the temperature of the "supercooled water" under the same external conditions, the smaller the "grain boundary energy" that needs to be overcome, so the "supercooled water" that is much lower than zero degrees Celsius only needs a very slight vibration to quickly complete the freezing process.

If the temperature is only below 0 degrees Celsius, the poured boiling water will not freeze immediately, but will slowly become colder, because the temperature is not low enough, and the boiling water needs to lower its temperature by 100 degrees Celsius before it freezes.

No, 0 degrees Celsius is just a concept, it talks about the tipping point, but water doesn't freeze at zero, and ice doesn't melt at zero.

No. The specific heat capacity of water is relatively large, and the time required to cool down is relatively long, and it will not form ice immediately, if the temperature is very low and very low, the water will cool down very quickly, and it will quickly become ice.

The temperature has not dropped to 0 degrees Celsius or below, so why does the water in the cup freeze instantly?

a.Here's why.

1.Ice and water create a temperature difference. Ice absorbs heat, the temperature rises, water releases heat, and the temperature drops. But because of the ice even if it rises to 0°And the difference between room temperature and temperature will not be in heat absorption. So ice never turns into water.

2.water in the exothermic process. Because it is a solidification process.

The temperature is always kept at 0 degrees. This Zheng Jingsheng stage due to the room temperature and water are the sameThere is no temperature difference, so there is no water that dissipates heat and absorbs heat at the same time.

Therefore. The water will continue to radiate heat until it solidifies.

3.When the water solidifies into ice. From the first point, we know that ice never turns into water. So the mass of the ice increases

Water freezes at 0 degrees Celsius and boils at 100 degrees Celsius. You may think it's a coincidence, but it's not, because when scientists named "Celsius", they used the melting point and freezing point of water as the standard.

There are two conditions for water to freeze:

1. Reach the freezing point, that is, 0 degrees Celsius.

2. (However, there is also water at 0 degrees Celsius, and water at 0 degrees Celsius will not necessarily freeze, so only one will not work) You have to release heat.

Hope it helps, thank you!