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Does cold air have more oxygen than warm air?
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.
What happens when water vapor is lighter than nitrogen or oxygen?
Water vapor is a gas so it is in the air. Nitrogen and nitrogen are in the air too, but there is more nitrogen than anything in the air. I believe it rises because it is lighter, like a balloon filled with helium.
Why do catfish survive in low-oxygen levels better than trouts?
Catfish have a more efficient way to extract oxygen from the water due to their labyrinth organ, which allows them to absorb oxygen from both air and water. In contrast, trouts rely solely on extracting oxygen from water through their gills, making them more vulnerable to low-oxygen environments. Additionally, catfish are more tolerant of low-oxygen levels as they can slow down their metabolism to conserve energy.
Is water present in air?
Aside from bubbles, there is no "air" in water, however oxygen and other atmospheric gases, such as oxygen or nitrogen, may readily absorb into water. Water is after all made up of two atmospheric gases, hydrogen and oxygen.
Is the air thicker in more humid air?
Yes, humid air is denser than dry air because water vapor molecules have a higher mass than nitrogen and oxygen molecules found in air. This can make it seem like the air is thicker when it is more humid.
Why air is a better respiratory medium?
the respiratory medium of aquatic and terrestrial organisms are water and air respectively.Aquatic animals get oxygen dissolved in water while terrestrial animals get oxygen from atmospheric air.The oxygen content of air is much higher then the oxygen content of water.The ventilation in water is far more difficult than the ventilation in air because water is denser then air. Thus air is the better respiratory medium then water.
What is the advantage of air as respiratory medium?
the respiratory medium of aquatic and terrestrial organisms are water and air respectively.Aquatic animals get oxygen dissolved in water while terrestrial animals get oxygen from atmospheric air.The oxygen content of air is much higher then the oxygen content of water.The ventilation in water is far more difficult than the ventilation in air because water is denser then air. Thus air is the better respiratory medium then water.
Does Ocean water has higher levels of oxygen than air?
No, ocean water does not have higher levels of oxygen than air. The concentration of oxygen in ocean water is much lower compared to the amount found in the atmosphere. Ocean water contains dissolved oxygen essential for marine life, but the overall oxygen content is lower than that of the air.
Why would oxygen diffuse much faster in air than water?
Oxygen diffuses faster in air than in water because air has lower density and viscosity compared to water. This results in less resistance to the movement of oxygen molecules, allowing them to travel more quickly through the air compared to water. Additionally, the concentration of oxygen in air is higher than in water, further facilitating the diffusion process.
What is the major advantage of air?
The concentration of oxygen in the air is much much higher than in the water. This make obtaining oxygen much easier and strenuous activity (to a level higher than that is water) possible.
Why air dissolved in water contains maximum percent of oxygen?
Air dissolved in water contains a higher percentage of oxygen than nitrogen because oxygen is more soluble in water than nitrogen. This is due to the differences in their molecular characteristics, such as molecular weight and polarity, which affect their solubility in water.
What is the major advantage of air breathing?
The concentration of oxygen in the air is much much higher than in the water. This make obtaining oxygen much easier and strenuous activity (to a level higher than that is water) possible.
Why air dissolved in water contains higher proportion of oxygen?
Air contains about 21% oxygen and 78% nitrogen, while water can only dissolve a limited amount of gas. Therefore, the oxygen in air dissolves in water at a higher proportion than nitrogen. This is due to the partial pressure of oxygen being higher in air compared to nitrogen.
Does ocean water have higher levels of oxygen than air?
No, air contains about 21% oxygen, while ocean water contains only about 5-10 milliliters of dissolved oxygen per liter. The higher concentration of oxygen in the air makes it easier for animals to extract the oxygen they need for respiration.
How much air is in hot water Is there more air in cold water under the same pressure of course?
Colder water can hold more oxygen than warmer water.
What kind of energy travels through water better than through air?
Sound energy travels better through water than through air because water is denser and transmits sound waves more efficiently. This is why marine animals rely on sound for communication and navigation in the ocean.
Does still water have more oxygen than flowing water?
Flowing water generally has more dissolved oxygen than still water because moving water allows more oxygen to be absorbed from the air. Still water can become depleted of oxygen over time due to lack of replenishment, especially in stagnant or enclosed areas.
