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An endothermic reaction takes in heat from its surroundings. One example of a spontaneous endothermic reaction is an ice pack that doesn't have to be kept in the freezer. When the ice pack is struck with your palm the membrane is broken and the salt is dissolved in the water. The equation would be NH4NO3 plus H2O is equal to NH4 plus NH3.
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∙ 9y ago
Wiki User
∙ 13y agoSometimes yes, sometimes no.
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Is spontaneous reaction exo or endo?
Reactions are described by this equation: GD = HD - TDS where D = delta for change in values. GD < 0 spontaneous HD < 0 exothermic ; HD > 0 endothermic The first equation is Gibbs free energy. When G is negative, the reaction is spontaneous. In contrast, a positive number G is non spontaneous. The interesting thing is that spontaneous reactions can be EITHER exothermic and endothermic. Lets look at this: lets assume HD has a value of 100. This means TDS would have to be bigger than 100 in order to make GD a negative number. An endothermic reaction which has a positive H can still be exothermic. Here's another way to pose your question: Is an exothermic reaction spontaneous? Always. Is an endothermic reaction spontaneous? This can be either.
The synthesis of carbon disulfide is spontaneous and exothermic at room temperature what must be true regarding this reaction?
The reverse reaction is endothermic and nonspontaneous.
The synthesis of decomposition of nitrogen dioxide is endothermic and nonspontaneous at room temperature what must be true regarding this reaction?
The reverse reaction is exothermic and spontaneous.
Difference between endothermic and endergonic?
Endergonic means "absorbing energy in the form of work." Endergonic reactions are not spontaneous. An exergonic reaction is a chemical reaction where the change in the free energy is negative, indicating a spontaneous reaction.
A chemical reaction that absorbs free energy?
Can be called endothermic.
How can an endothermic reaction be spontaneous at room temperature?
Exothermic, as endothermic reactions require activation energy.
What is a non-spontaneous reaction that absorbs free energy from its surroundings?
Endothermic
Is spontaneous reaction exo or endo?
Reactions are described by this equation: GD = HD - TDS where D = delta for change in values. GD < 0 spontaneous HD < 0 exothermic ; HD > 0 endothermic The first equation is Gibbs free energy. When G is negative, the reaction is spontaneous. In contrast, a positive number G is non spontaneous. The interesting thing is that spontaneous reactions can be EITHER exothermic and endothermic. Lets look at this: lets assume HD has a value of 100. This means TDS would have to be bigger than 100 in order to make GD a negative number. An endothermic reaction which has a positive H can still be exothermic. Here's another way to pose your question: Is an exothermic reaction spontaneous? Always. Is an endothermic reaction spontaneous? This can be either.
What are a set of conditions would result in a reaction that is unambiguously non-spontaneous?
endothermic, increasing entropy
The synthesis of carbon disulfide is spontaneous and exothermic at room temperature what must be true regarding this reaction?
The reverse reaction is endothermic and nonspontaneous.
The synthesis of decomposition of nitrogen dioxide is endothermic and nonspontaneous at room temperature what must be true regarding this reaction?
The reverse reaction is exothermic and spontaneous.
Difference between endothermic and endergonic?
Endergonic means "absorbing energy in the form of work." Endergonic reactions are not spontaneous. An exergonic reaction is a chemical reaction where the change in the free energy is negative, indicating a spontaneous reaction.
What is a chemical reaction that absorbs heat?
An endothermic reaction absorbs heat, an exothermic reaction releases heat.
A chemical reaction that absorbs free energy?
Can be called endothermic.
The precipitation of potassium chloride is nonspontaneous and exothermic at room temperature what must be true regarding this process?
The reverse reaction is endothermic and spontaneous.
What kind of reaction occurs when the entropy change of an endothermic reaction is negative?
The reaction is exothermic
A reaction that absorbs energy is called?
Endothermic-take in Heat, as opposed to exothermic which gives off heat-like a fire or explosion.
