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For some non-spontaneous reactions, you can change the temperature. For other non-spontaneous reactions, there is nothing you can do to make it spontaneous. Nature favors reactions that increase a system's entropy (disorder) and nature favors reactions that are exothermic (they release enthalpy). Any reaction that does both of these things is spontaneous at all temperatures. Any reaction that does neither of these things is never spontaneous. As far as this question is concerned, the interesting reactions are endothermic reactions that increase entropy and exothermic reactions that decrease entropy. Whether these reactions are spontaneous depends on the temperature. The first variety (endothermic, increase entropy) will be spontaneous at high temperatures; the second (exothermic, decrease entropy) will be spontaneous at low temperatures. To find the temperature at which a reaction becomes spontaneous, one may apply the Gibbs equation: DG = DH - TDS where capital Ds stand for the Greek capital delta.
What else can I help you with?
What conditions will a low temperature make a reaction spontaneous?
if H and S are both negative
What are a set of conditions would result in a reaction that is unambiguously non-spontaneous?
endothermic, increasing entropy
Why is an energy absorbing reaction or an energy releasing reaction more likely to be spontaneous?
To become spontanious,energy should be released.
What information is needed to be certain that a chemical reaction is non spontaneous?
To determine if a chemical reaction is non-spontaneous, you need information about the Gibbs free energy change (ΔG) for the reaction. If ΔG is positive, the reaction is non-spontaneous under the given conditions. Additionally, knowing the temperature and pressure conditions, as well as the enthalpy (ΔH) and entropy (ΔS) changes, can help clarify the spontaneity of the reaction using the Gibbs free energy equation: ΔG = ΔH - TΔS.
Forming a triacylglyceride from three fatty acids and glycerol...identify this reaction as either anabolic or catabolic endergonic or exergonic and spontaneous or non spontaneous.?
Forming a triacylglyceride from three fatty acids and glycerol is an anabolic reaction that is endergonic (requires energy input) and non-spontaneous under normal cellular conditions.
A chemical reaction has a positive H value and a positive S value Under what conditions is the reaction spontaneous?
The spontaneity of a reaction is determined by the sign of the Gibbs free energy (ΔG). If both enthalpy (H) and entropy (S) are positive, the reaction can be spontaneous at high temperatures where the TΔS term outweighs the positive ΔH term, resulting in a negative ΔG. This means the reaction will be spontaneous at elevated temperatures.
What conditions will a low temperature make a reaction spontaneous?
if H and S are both negative
At what value of g does a reaction become spontaneous, and what is the numerical value of this threshold?
A reaction becomes spontaneous when the Gibbs free energy (G) is negative. The numerical value of this threshold varies depending on the specific reaction.
Is the reaction exergonic and spontaneous or not?
Yes, the reaction is exergonic and spontaneous.
What are a set of conditions would result in a reaction that is unambiguously non-spontaneous?
endothermic, increasing entropy
A chemical reaction has a positive ΔH value and a positive ΔS value Under what conditions is the reaction spontaneous?
The reaction will be spontaneous at high temperatures (T) where TΔS > ΔH, according to Gibbs free energy equation, ΔG = ΔH - TΔS. At high enough temperatures, the TΔS term can outweigh the positive ΔH term, leading to a negative ΔG value and a spontaneous reaction.
Why is an energy absorbing reaction or an energy releasing reaction more likely to be spontaneous?
To become spontanious,energy should be released.
Can salt dissolve in water?
Yes, the dissociation of salt in water is a spontaneous reaction under normal conditions.
A reaction that occurs without provocation from an outside system is?
A spontaneous reaction.
Is the reaction spontaneous or non-spontaneous when considering the keyword "spontaneous vs non-spontaneous"?
In the context of "spontaneous vs non-spontaneous," a reaction is considered spontaneous if it occurs on its own without needing external influence. On the other hand, a non-spontaneous reaction requires external energy input to occur.
What redox conditions will produce a spontaneous reaction?
The sum of the voltages of the half-reactions is positive.
What is the reverse of a spontaneous reaction, and how does it differ from a nonspontaneous reaction?
The reverse of a spontaneous reaction is a nonspontaneous reaction. In a spontaneous reaction, the reaction occurs naturally without any external influence, while in a nonspontaneous reaction, external energy input is required for the reaction to occur.
