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Why does all the water in lake have to be cooled to 4c before surface water can be cooled below 4c?
Water is most dense at 4 degrees Celsius. When cooling the surface water below 4 degrees Celsius, the colder water sinks because it is denser, causing a uniform temperature to be established at 4 degrees Celsius throughout the lake before further cooling can occur. This uniformity is necessary to prevent a temperature gradient that could disrupt the natural mixing patterns of the lake.
What else can I help you with?
Before ice can form on a lake all the water in the lake must be cooled to?
no it can form any time. ^^^^^^^ thats bS
When a whole layer of air is cooled below the dew point what is the result?
When a whole layer of air is cooled below the dew point, condensation occurs and water droplets form. This can lead to the formation of clouds or fog, depending on the altitude and humidity level.
As water is cooled what happens to the density?
As water is cooled, its density increases until it reaches its maximum density at 4 degrees Celsius. Below 4 degrees Celsius, water begins to expand as it freezes, which is why ice is less dense than liquid water.
How is it possible that water turns to ice instantly?
When water is rapidly cooled to below its freezing point, the molecules lose energy and slow down, causing them to form a solid structure known as ice. This process can happen quickly under certain conditions, such as when water is exposed to extremely cold temperatures or when it comes into contact with a freezing surface.
Can water get colder than its freezing point?
Yes, water can be cooled below its freezing point without freezing immediately. This is known as supercooling. When the water is disturbed or a seed crystal is introduced, it will quickly freeze.
Can air be warmed or cooled by the surface below?
This is a very easy question to answer . Yes the air can be cooled or warmed by the surface below it because say if there was to be a earthquake right now in the ocean the heating of the surfaceunder the water would cause the water the make enormous wave and for te world to shake and depending on how hot the surface is heating.
Can air be warmed or cooled by the surface?
This is a very easy question to answer . Yes the air can be cooled or warmed by the surface below it because say if there was to be a earthquake right now in the ocean the heating of the surfaceunder the water would cause the water the make enormous wave and for te world to shake and depending on how hot the surface is heating.
When air high above the earth's surface is cooled below the dew point it is likely to form?
When air high above the earth's surface is cooled below the dew point, it is likely to form clouds or fog. This occurs when the air reaches its saturation point and the water vapor in the air starts to condense into tiny water droplets or ice crystals.
What can cause water vapor in the air to be cooled?
Water vapor in the air can be cooled by exposure to cooler air temperatures or by coming into contact with a colder surface. This cooling can lead to condensation of the water vapor into liquid water or ice, forming clouds or fog.
Why the surface layer of water in the poles is colder than the layer just below it yet the colder layer floats on top?
Due to the anamolous behaviour of water, the surface water being cooled by the external environment falls below 4C and begin to expand. when this surface water molecules expand they rise to the top due to a decrease in density as compared to the water below the surface. the cooler the temperature henceforth, the more the expansion of the surface water molecules till it solidifies to become ice. this surface ice then acts as an insulator and prevents the exchange of heat between the environment the water molecules just below it, thus maintaining the temperature of the water below the surface as constant.
Why does all the water in a lake have to be cooled to 4 degrees Celsius before water can be cooled below 4 degrees Celsius?
Water in a lake is usually cooled by the cold air above its surface rather than from the ground underneath it. As the top layer of water cools its density increases and so it sinks to the bottom, bringing other water up to the surface. This water is then cooled. This carries on until the temperature reaches 4 deg C when the density reaches a maximum. Further cooling lowers the temperature of the top layer but now its density is less than that of the water below so the top layer stays on top until it freezes (if it is cold enough). That is how you can get lakes with a frozen surface but liquid water below which can sustain aquatic life and also destroy human or other life forms that fall through the ice!
When moist air is cooled below its dew point water will?
The water will condense forming dew.
How is condensation created?
Condensation is created when warm air containing water vapor comes into contact with a cold surface, causing the water vapor to cool and turn back into liquid water. This process happens when the air is cooled below its dew point temperature, leading to the formation of water droplets on the surface.
Does heat move in or out of water cooled below 0 degrees?
Heat moves from the water to its surroundings when water is cooled below 0 degrees Celsius. This causes the temperature of the water to decrease further until it reaches its freezing point, at which point it will freeze into ice.
Can water molecules evaporate at the surface or below the surface?
Water molecules can evaporate from the surface of water, where they gain enough energy to overcome surface tension and escape into the air. Below the surface, water molecules can also evaporate through a process known as sublimation, where molecules transition directly from a solid to a gas, although this is less common.
How can water be cooled without using ice?
Water can be cooled without using ice by using a process called evaporation. When water evaporates, it absorbs heat from its surroundings, causing it to cool down. This can be achieved by blowing air over the water's surface or by placing the water in a container with a larger surface area to increase evaporation.
Water is said to be when it cools below 0 degrees C without freezing?
super-cooled
