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If the sign of ΔH is _______ and the sign of ΔS is _______ , then the magnitude of TΔS must be ________ than the magnitude of ΔH for the reaction to be spontaneous. The Gibbs free energy equation is ΔG = ΔH - TΔS.

negative; negative; less

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Q: If the sign of H is and the sign of S is then the magnitude of T S must be than the magnitude of dH for the reaction to be spontaneous The Gibbs free energy equation is G?
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According to the Gibbs free energy equation what is the temperature range for which the formation of liquid bromine is spontaneous?

The reaction is spontaneous below 743 K.


Using the Gibbs free energy equation what is the temperature range for which the oxidation of lead is spontaneous?

The reaction is spontaneous below 554.8/0.1975 K.


Use the gibbs free energy equation shown below to determine the temperature for which the decomposition of KClO4 is spontaneous?

The reaction is spontaneous above 371 K.


According to the Gibbs free energy equation G H - TS when is a reaction always spontaneous?

when H is negative and S is positive


A reaction in which it seems no activation energy is needed?

a spontaneous reaction


How does Gibbs free energy predict spontaneous?

If G < 0, the reaction is spontaneous.


How does the Gibbs free energy predict spontaneity?

It tells if the reaction will process spontaneously or not


Why is an energy absorbing reaction or an energy releasing reaction more likely to be spontaneous?

To become spontanious,energy should be released.


Why do energy absorbing reactions react spontaneous?

it doesn't its energy releasing reaction


Which reaction released energy?

An exothermic reaction (often a spontaneous one)


Is spontaneous reaction exo or endo?

Reactions are described by this equation: GD = HD - TDS where D = delta for change in values. GD &lt; 0 spontaneous HD &lt; 0 exothermic ; HD &gt; 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 does Gibbs energy predict?

It predicts whether or not a reaction will be spontaneous.