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They just threw that question at me too. I looked around the provided resources and found:
A molecular model of gas solubility. The solubility of gases, like other solubilities, can increase or decrease with temperature. A simple model can be used to explain why gases can behave either way, depending on the gas and the solvent. The heat absorbed or released when a gas dissolves in liquid has essentially two contributions:
- Energy is absorbed to open a pocket in the solvent. Solvent molecules attract each other. Pulling them apart to make a cavity will require energy, and heat is absorbed in this step for most solvents. Water is a special case- it already contains open holes in its network of loose hydrogen bonds around room temperature. For water, very little heat is required to create pockets that can hold gas molecules.
- Energy is released when a gas molecule is popped into the pocket. Intermolecular attractions between the gas molecule and the surrounding solvent molecules lower its energy, and heat is released. The stronger the attractions are, the more heat is released. Water is capable of forming hydrogen bonds with some gases, while organic solvents often can't. A larger amount of heat is released when a gas molecule is placed in the pocket in water than in organic solvents.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoEnergy is released when a solute molecule is solvated. Sorry I can't explain it, but that's the right answer.
Wiki User
∙ 12y agoIt is released because when a solute molecule is being solvated it needs energy created from when heat is released.
Wiki User
∙ 13y agoIt is absorbed and the energy so absorbed is called "the latent heat of evaporation".
Wiki User
∙ 10y agoIt releases energy to make the bond, which makes sense because to break a chemical bond, you have to put in energy, which the elements absorb.
Wiki User
∙ 12y agoReleased
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Why do certain solutes dissolved in water release heat and other solutes do not?
those solute particles which form stroger bond with water than bonds in solid state themselve release the heat .....
Does the formation of solid liquid solutions release or absorb heat?
It could do either.
Does the formation of solid-liquid solutions release or absorb heat?
It could do either.
The low specific heat capacity of air causes it to?
absorb or release small amounts of heat, changing its temperature dramatically.
Does endothermic absorb or release energy?
Both, actually. Heat is released by the system (the object or area you're studying), and is absorbed by the surroundings (everything else, not including the system). Typically people are referring to the effects on the system, so in that case an exothermic reaction is a release of heat.
How do soil and water absorb and release heat?
about how do soil and water compare in their ability to absorb and release heat
Why do certain solutes dissolved in water release heat and other solutes do not?
those solute particles which form stroger bond with water than bonds in solid state themselve release the heat .....
If you have a solution that is saturated how you dissolve the excess solute?
Heat up the solvent. Solubility of most solid solutes increases with temperatue.
Is ammonium chloride is an exothermic?
an exothermic what? If you dissolve it in water, it's an endothermic process, and will absorb heat.
Does the Bunsen burner absorb energy as heat?
The Bunsen burner release energy as heat of combustion.
Is endothermic energy occurring when crystals dissolve in water and the container gets hot?
No.I know that in endothermic reactions things absorb heat or get colder. In exothermic reactions they release heat or get warmer. So, since the container gets hot I guess the energy is exothermic.
When matter changes can it absorb heat energy or release heat energy without a corresponding change in temperature?
no.
Does the formation of solid liquid solutions release or absorb heat?
It could do either.
Does the formation of solid-liquid solutions release or absorb heat?
It could do either.
Can proteins absorb or lose heat without changing temperature?
No, proteins can't absorb or lose heat without changing much in temperature. Water has a high heat capacity, so water can absorb or release a great deal of heat energy without changing much in temperature.
How fast or slow does water absorb and release heat?
there is no specific set time; it depends on how direct the heat source is and how much heat or light there is
What happens to solid liquid or gases when they absorb or release the amount of heat?
they change their temperature
