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How will temperature affect the spontaneity of reaction with positive H and S?

A high temperature will make it spontaneous.


What happens to the entropy in the reaction l2(s)l2(g)?

The entropy increases in this reaction, as the solid reactant (I2(s)) is becoming a gas (I2(g)), which represents a higher degree of disorder and randomness on a molecular level. The increased entropy contributes to the spontaneity of the reaction.


The favorability or spontaneity of a reaction increases when during the course of a reaction?

The favorability or spontaneity of a reaction increases when the overall entropy of the system increases, or when the free energy of the system decreases. This can happen when reactants are in a more disordered state, when the system achieves greater stability, or when the reaction releases heat.


Is an exothermic reaction always spontaneous?

No, an exothermic reaction is not always spontaneous. The spontaneity of a reaction depends on factors such as temperature, pressure, and the entropy change of the system.


How does temperature affect spontaneity?

If H and S have the same sign, the temperature will determine spontaneity.


What kind of changes contribute to spontaneity?

An increase in entropy.


How is enthalpy related to spontaneity of a reaction?

S > 0 contributes to spontaneity.


How does temperature affect the spontaneity of a reaction?

Increasing the temperature makes a reaction spontaneous in some situations.


How will temperature affect the spontaneity of a reaction with positive triangle H and triangle S?

For a reaction with a positive enthalpy change (ΔH > 0) and a positive entropy change (ΔS > 0), the spontaneity is influenced by temperature through the Gibbs free energy equation: ΔG = ΔH - TΔS. As temperature increases, the TΔS term becomes larger, which can make ΔG more negative, thereby favoring spontaneity. Therefore, at higher temperatures, the reaction is more likely to be spontaneous, while at lower temperatures, it may not be spontaneous.


How will the temperature affect the spontaneity of a reaction with positive h and s?

A high temperature will make it spontaneous.


What is the significance of the Gibbs energy equation in determining the spontaneity of a chemical reaction?

The Gibbs energy equation helps determine if a chemical reaction will occur spontaneously by considering the change in enthalpy and entropy of the system. If the Gibbs energy is negative, the reaction is spontaneous.


How can the spontaneity of a reaction be reversed?

The spontaneity of a reaction can be reversed by changing the conditions such as temperature, pressure, or concentration of reactants, or by adding a catalyst.