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Describe the trend of the curve graph of temperature vs solubility decide whether the solution process is endothermic or exothermic?
Wiki User
∙ 14y ago
Le Chatelier's principle of equilibrium can be applied here. In short, it states that if you stress a system at equilibrium, such as that when a substance is partially dissolved, the equilibrium system will shift to the right (increasing solubility) or to the left (decreasing solubility) to relieve the stress. You can treat heat as a substance in these kinds of problems, as in the following:
heat + reactants <---> products (endothermic)
reactants <---> products + heat (exothermic)
In this case the dissolution equilibrium looks like this:
heat + solid substance <---> dissolved substance (endothermic)
solid substance <---> dissolved substance + heat (exothermic)
If you add heat (raise temperature) to an endothermic process, it will shift to the right, causing more substance to dissolve in order to remove the stress of added heat. In other words, the solubility curve will show higher solubility at higher temperature.
If you add heat (raise temperature) to an exothermic process, it will shift to the left, causing more substance to precipitate in order to remove the stress of added heat. In other words, the solubility curve will show lower solubility at higher temperature.
Wiki User
∙ 14y ago
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Is a thermos endothermic or exothermic?
Endothermic: absorbs energy from surroundings in the form of heat. ie. outside temperature loses heat. Exothermic: releases energy into surroundings in the form of heat ie. outside temperature gains heat. Seeing as a thermos is supposed to MAINTAIN the temperature of its contents, it is neither.
What is endothermic use in a sentence?
Endothermic means a temperature under a surface and is used in a number of instances, most notably medicine where it is used to describe a temperature under the skin, and geology where it can be used to describe the temperature under the suface of a planet, therefore a use of endothermic in a sentence could be;"The endothermic temperature of the planet was greater than that of it's surface."
Which is the best term to describe a chemical reaction in which the reactants have more potential energy than the products?
Mrs. Winn. eh?- is called an endothermic reaction.
What is the word used to describe a chemical reaction in which energy is released?
Any chemical reaction that releases energy is called an exothermic action. The equations for an exothermic reaction between substance A and substance B would be: A + B --> AB + Heat The heat represents the energy and we can tell it is being released because it is on the product side of the equation. The reverse reaction would be endothermic, meaning it requires energy, heat would be on the reactant side and the equation would be: AB + Heat --> A + B To sum things up, an exothermic reaction releases energy and heat will be on the product side of the equation. An endothermic reaction requires energy and heat will be on the reactant side of the equation.
Explain what it means for a reaction to be endothermic and what would happen to the temperature recorded by a thermometer in an endothermic reaction?
An endothermic reaction absorbs heat energy from the system. In an endothermic reaction a thermometer measuring the reactants and products would register a decrease in temperature.
How do you recognize exothermic and endothermic reactions?
This question is poorly worded. As worded--No. You can DESCRIBE exothermic or endothermic reactions on graphs, however.
Would you describe the reaction of calcium in water as being exothermic or endothermic?
The reaction between calcium and water is very exothermic.
Is a thermos endothermic or exothermic?
Endothermic: absorbs energy from surroundings in the form of heat. ie. outside temperature loses heat. Exothermic: releases energy into surroundings in the form of heat ie. outside temperature gains heat. Seeing as a thermos is supposed to MAINTAIN the temperature of its contents, it is neither.
What is endothermic use in a sentence?
Endothermic means a temperature under a surface and is used in a number of instances, most notably medicine where it is used to describe a temperature under the skin, and geology where it can be used to describe the temperature under the suface of a planet, therefore a use of endothermic in a sentence could be;"The endothermic temperature of the planet was greater than that of it's surface."
Is the dissolution of calcium hydroxide exothermic or endothermic?
Exothermic: Heat is given off as one of the products. The container holding the reactants and the products gets hot during the reaction. Use approximately 5 mL of 6M HCl and add to a testtube containing a small peice of mossy Zn. Immediately place a thermometer in the testtube and you will see a quick rise in temperature. This rise in temperature indicates that heat is given off which is a clear sign of an exothermic reaction. Hope this helps!!
What does edothermic and exothermic mean?
Endothermic means that the reaction absorbs heat from the surroundings, and requiring energy be added to it in order for it to take place. An Exothermic reaction, however, releases heat into the surroundings as a result of the reaction.
Is a mammal an endothermic organism?
Polar bear, like all other mammals, are warm blooded. The terms exothermic and endothermic do not apply to species of animals, they are used to describe chemical reactions (exothermic reactions generate energy, whereas endothermic reactions require energy to make them happen).
Which is the best term to describe a chemical reaction in which the reactants have more potential energy than the products?
Mrs. Winn. eh?- is called an endothermic reaction.
Physical and chemical changes can be either exothermic or endothermic changes?
The two terms are probably used most often to describe chemical reactions - whether or not they absorb or require heat (endothermic) or create release heat (exothermic). However, since the terms simply mean "absorbing heat", and "giving off heat", they can be used to describe any such event, physical, chemical or nulear. Ray
What is the difference between ectothermic and exothermic r fish ectothermic or exothermic?
Ectothermic means the same thing as "cold-blooded." It means that the animals body does not produce its own heat internally so the animal's temperature varies with its surroundings. Endothermic means the same thing as "warm-blooded." It means that the animals body regulates its temperature internally by producing heat and keeping the body temperature relatively stable. Exothermic does not relate to animals at all. It is a term used in chemistry to describe certain types of chemical reactions. Fish are ectothermic as most living things that are not birds or mammals are.
What is the word used to describe a chemical reaction in which energy is released?
Any chemical reaction that releases energy is called an exothermic action. The equations for an exothermic reaction between substance A and substance B would be: A + B --> AB + Heat The heat represents the energy and we can tell it is being released because it is on the product side of the equation. The reverse reaction would be endothermic, meaning it requires energy, heat would be on the reactant side and the equation would be: AB + Heat --> A + B To sum things up, an exothermic reaction releases energy and heat will be on the product side of the equation. An endothermic reaction requires energy and heat will be on the reactant side of the equation.
Explain what it means for a reaction to be endothermic and what would happen to the temperature recorded by a thermometer in an endothermic reaction?
An endothermic reaction absorbs heat energy from the system. In an endothermic reaction a thermometer measuring the reactants and products would register a decrease in temperature.
