0
Stability of the products as compare to stability of reactants.
Wiki User
∙ 13y ago
A chemical reaction is spontaneous if it releases energy in the form of heat or light, or if it increases the disorder (entropy) of the system. This can happen when the products of the reaction are more stable or have lower energy than the reactants. The key factor is whether the reaction can proceed with a net decrease in free energy.
Wiki User
∙ 7y agoA spontaeous chemical reaction occur without an external source of energy.
Wiki User
∙ 7y agoFor a reaction to be spontaneous, it must either be driven forward by enthalpy, entropy, or a combination of both.
Add your answer:
Earn +20 pts
What does the term spontaneous mean in a chemical reaction?
Spontaneous in a chemical reaction means that the reaction occurs naturally without any external influence once started. It is driven by the inherent properties of the reactants and products, leading to a decrease in free energy and an increase in entropy.
Why a spontaneous chemical reaction is not necessarily a fast reaction?
A spontaneous chemical reaction is one that occurs without requiring an external input of energy to proceed. The rate of a reaction, however, is determined by the activation energy needed for the reaction to occur. So, a spontaneous reaction can still be slow if the activation energy is high, meaning the reaction rate is low.
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.
What does the term spontaneous mean in chemical reactions?
This is a very fast reaction.
A reaction that occurs without provocation from an outside system is?
A spontaneous reaction.
What does the term spontaneous mean in a chemical reaction?
Spontaneous in a chemical reaction means that the reaction occurs naturally without any external influence once started. It is driven by the inherent properties of the reactants and products, leading to a decrease in free energy and an increase in entropy.
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 is a chemical reaction that happens quickly?
Spontaneous combustion
What is a non spontaneous reaction?
a non spontaneous reaction is a reaction that doesnt occur naturally and it normally tends to favor the reactants of a chemical reaction. Another thing is that it doesnt really produce free energy
What is a chemincal reaction?
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity.
Ask us anythingWhich of the following describes a nonspontaneous reaction?
a non spontaneous reaction is a reaction that doesnt occur naturally and it normally tends to favor the reactants of a chemical reaction. Another thing is that it doesnt really produce free energy
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.
What makes a chemical reaction for swimming raisins?
vinegar and baking soda makes the chemical reaction for swimming raisins
How does temperature affect the spontaneity of a reaction?
Increasing the temperature makes a reaction spontaneous in some situations.
What kind of enthalpy change favors a spontaneous reaction?
For a spontaneous reaction, the overall change in enthalpy should be negative (exothermic). This means that the products have a lower enthalpy than the reactants, releasing energy in the form of heat.
Are chemical reactions always spontaneous when H is negative and S is negative?
No, when H and S are both negative, the reaction will only be spontaneous below a certain temperature
What does the term spontaneous mean in chemical reactions?
This is a very fast reaction.
