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When sodium hydroxide is dissolved in water the temperature of the water increases. Is this endothermic or exothermic?
Exothermic
As the temperature of an aqueous solution increases what does the concentration of gas dissolved in the solution do?
An aqueous solution has 0.0070 gram of oxygen dissolved in 1000. grams of water. calculate the dissolved oxygen concentration of this solution in parts per million?A. 17ppm B. 27ppm C. 7ppm D. 7ppm
Why does metal not rust in boiled water?
Water at high temperature will have less dissolved gases including oxygen.
How might you account for dissolved oxygen concentrations of such a low value at a temperature of 25C?
Other factors must have caused the low dissolved oxygen levels. Bacteria and other organisms can lower the dissolved oxygen of water when they respire aerobically.
How does the solubility of a substance change with a rise in temperature?
With a rise of temperature, the solubility increases
When water temperature increases what will the dissolved oxygen content do?
The amount of dissolved oxygen decreases when water temperature increases. Warm water is unable to dissolve as much oxygen gas.
how does temperature affect the concentration of dissolved oxygen?
Temperature has a direct effect on the concentration of dissolved oxygen in water. As the temperature of the water increases, the solubility of oxygen decreases and the concentration of dissolved oxygen will decrease. Conversely, as the temperature of the water decreases, the solubility of oxygen increases and the concentration of dissolved oxygen will increase. Additionally, warmer water is generally less dense than colder water, resulting in less efficient oxygen transfer.
Which contain the greater amount of dissolved oxygen a lake in the spring or a lake in the summer?
. Temperature directly affects the solubility of oxygen in water. When the temperature of water increases, a portion of oxygen converts from liquid state to a gas. Thus the ability of water to maintain oxygen in dissolved state decreases with increasing temperature. As a result, colder water can potentially contain more dissolved oxygen than warm water. Therefore, a lake in spring contains greater amount of Dissolved Oxygen than the same lake in summer.
State the relationship between water temperature and the maximum mass of ammonium chloride that can be dissolved in 100 grams of water?
As the temperature of the water increases, the amount of solute (in this case NH4Cl) that can be dissolved increases.
What is the relationship between temperature and dissolved oxygen in an aquatic ecosystem?
The colder the water, the more DO (dissolved oxygen) it can contain.
Why is hypoxia more of a problem in the summer?
Hypoxia is a deficiency of oxygen in either the fish or water itself. Water naturally has a level of oxygen dissolved in itself. That is the oxygen that fish take in through the gills. This level of oxygen in clean pure water is about 8 ppm. In the summer more algae grows in the water due to favorable conditions. This algae consumes oxygen from the water. Also, in the summer the water temperature increases. Oxygen has a lower solubility in water as the temperature increases. Therefore the level of oxygen in the water will decrease slightly as the water temperature increases. These are just a few common reasons. Every water body is certainly different.
What can decrease the amount of dissolved oxygen in water?
Sometimes, water can become overheated, like if it is near a factory or power plant. If the water's temperature increases, then the Dissolved Oxygen (DO) level will decrease, which can cause strain or even death for many fish and marine wildlife.
When sodium hydroxide is dissolved in water the temperature of the water increases. Is this endothermic or exothermic?
Exothermic
Which region would you expect to find the largest amounts of dissolved oxygen in the ocean water?
In polar oceans because the solubility of oxygen increases with decreasing temperature
When a substance is dissolved in water the temperature of the water increases this process is known as?
exothermic with the release of energy
What is the oxygen dissolved in water is a?
The oxygen dissolved in water is a measure of dissolved oxygen (DO).
Why does dissolved oxygen change when the water temperature goes up?
Because it does.
