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Salt dissolves better in hot water than in cold water, but gases dissolve better in cold than in hot water.
The reason salt dissolves better in hot water, is that heated water molecules have greater kinetic energy. Since the molecules move around more, the attractions between water molecules are weaker, and salts are able to enter.
The reason gases dissolve better in cold water, is that gases want to escape water. However, they are trapped by the water molecules. When the water is hot, the molecules move around more, and there is more space between them. Gases are then able to escape. When the water is cold, the molecules stick close together, and trap the oxygen.
In other words, the same conditions that help salts dissolve in water, allow gases to escape water.
No, the amount of oxygen in the air remains constant regardless of temperature. However, cold air is denser than warm air, which can allow for slightly more oxygen to be present in a given volume of cold air compared to warm air.
No. Cold water dissolves more oxygen than warm. There is lower thermal energy in colder water, and this lack of energy allows for intermolecular forces to keep O2 and H2O "bonded" by dipole - dipole forces. The 2 partial positive H's will induce a dipole on the O2, making the end of the O2, facing the hydrogen of the H2O, partially negative and attracting it to the partial positive H's. This makes the other side of the O2 partially positive. Then the partially negative O of another H2O will be attracted to the partially positive O of the induced dipole, and the O2 will be dissolved in the water. The greater the thermal energy, the more movement of molecules, the less chance for these intermolecular forces to act.
Cold air is denser than warm air, so there is technically more oxygen per unit of volume, but the same is true of all the other gasses in air. The composition does not change with temperature.
Colder water will have a higher dissolved oxygen (DO) level than that of warmer water, because gases are trapped by the water molecules at cold temperatures. When the temperature rises, the molecules move around more, and gases, such as dissolved oxygen, are able to escape.
Because the ability of a liquid to dissolve anything is normally greater at lower temperatures (the molecules jostle around less when it's colder).
Warm water is more able to dissolve oxygen gas than cold water.
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What is less dense warm air or cold air?
Warm air is less dense than cold air because its molecules are more spread out due to their increased energy and movement. This causes warm air to rise, as it is lighter than the denser cold air.
What is the difference in density between warm and cold air?
Warm air is less dense than cold air because the molecules in warm air have more energy and are more spread out, resulting in lower density. Cold air is denser because the molecules are closer together and moving slower.
Is warm air dense?
No, warm air is less dense than cold air because the molecules in warm air have more energy and are spread out more, resulting in lower density.
Do warm fronts have steeper slopes than cold fronts?
No, cold fronts typically have steeper slopes than warm fronts. Cold fronts tend to move more quickly and have a more pronounced temperature difference across the front, resulting in a steeper slope. Warm fronts are more gradual in their slope and advance more slowly.
What kind of density do warm air and cold air masses have?
Warm air masses are less dense than cold air masses because warm air molecules have more energy and are more spread out, leading to lower pressure. Cold air masses are denser because cold air molecules are closer together and have less energy, resulting in higher pressure.
Why aquatic species feel comfortable in cold water rather than warm water?
Fish survive better in cold water then in warm water because :- 1) Cold water has more oxygen and more oxygen means more microscopic life which means more food. 2) In Cold water there is more solubility of the carbon dioxide released by the fish
What is cold air more than warm air?
Cold air is more dense than warm air.
What is more dense cold water or warm?
cold ocean water is more dense than warm water
Does cold air hold more than warm air?
No. Warm air is capable of holding much more water vapour than cold air.
Is cold water more or less dense than warm water?
cold ocean waer has more dense than warm water.
Why is cool air denser than warm air?
There are more atoms in cold air than warm.
Eyeballs feel warm?
kinda its more like room temperature but its more warm than cold
Is the air more saturated in cold or warm weather?
Warm air holds more moisture than cold air. In warm weather, there is increased evaporation of sea water.
How is the density different for warm and cool air?
The molecules in warm air will vibrate creating small spaces around them. this makes warm air less dense than cold air. For instance a car in cold weather will produce slighty more power due to the increased density of air supplying more oxygen.
What is a characteristic of cold air?
Cold Air is more dense than Warm Air.
What is less dense warm air or cold air?
Warm air is less dense than cold air because its molecules are more spread out due to their increased energy and movement. This causes warm air to rise, as it is lighter than the denser cold air.
Is cold air heavier than warm air?
False because warm air rises. The particles in cold air are moving more slowly and make cold air more dense than warm air.
