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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.
At which temperature would a reaction with H -92 kJmol S -0.199 kJ(molK) be spontaneous?
The condition for a reaction to be spontaneous is ΔG < 0, where ΔG = ΔH - TΔS. At the temperature where ΔG becomes negative, the reaction will be spontaneous. You can calculate this temperature using the given values of ΔH and ΔS.
The synthesis of decomposition of nitrogen dioxide is endothermic and nonspontaneous at room temperature what must be true regarding this reaction?
For the reaction to occur at room temperature, an external energy source must be provided to drive the reaction, and the reaction will absorb heat from the surroundings. The reaction is non-spontaneous because it does not occur naturally without intervention.
Is the reaction exergonic and spontaneous or not?
Yes, the reaction is exergonic and spontaneous.
When Could A High Temperature Make A Reaction That Was Nonspontaneous At Low Temperature Spontaneous?
A high temperature can make a nonspontaneous reaction spontaneous by providing enough energy to overcome the activation energy barrier, allowing the reaction to proceed. At low temperatures, the kinetic energy of the molecules may not be sufficient for them to react, but increasing the temperature can provide the necessary energy for the reaction to occur spontaneously.
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.
At which temperature would a reaction with H -92 kJmol S -0.199 kJ(molK) be spontaneous?
The condition for a reaction to be spontaneous is ΔG < 0, where ΔG = ΔH - TΔS. At the temperature where ΔG becomes negative, the reaction will be spontaneous. You can calculate this temperature using the given values of ΔH and ΔS.
How will the temperature affect the spontaneity of a reaction with positive h and s?
A high temperature will make it spontaneous.
What temperature is a reaction spontaneous?
A reaction is considered spontaneous when it occurs without external intervention, typically at a specific temperature where the Gibbs free energy change (ΔG) is negative (ΔG < 0). The temperature at which a reaction becomes spontaneous can vary depending on the enthalpy (ΔH) and entropy (ΔS) changes associated with the reaction, as expressed in the Gibbs free energy equation: ΔG = ΔH - TΔS. If the entropy increases (ΔS > 0), the reaction may be spontaneous at lower temperatures, while if the enthalpy is favorable (ΔH < 0), it may be spontaneous at higher temperatures.
Use the gibbs free energy equation shown below to determine the temperature for which the decomposition of KClO4 is spontaneous?
To determine the temperature at which the decomposition of KClO4 is spontaneous, you need to know the Gibbs free energy change (∆G) for the reaction. If ∆G is negative, the reaction is spontaneous. Use the equation ∆G = ∆H - T∆S, where ∆H is the enthalpy change, ∆S is the entropy change, and T is the temperature in Kelvin. Set ∆G to 0 and solve for T to find the temperature at which the decomposition becomes spontaneous.
What conditions will a low temperature make a reaction spontaneous?
if H and S are both negative
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.
The synthesis of decomposition of nitrogen dioxide is endothermic and nonspontaneous at room temperature what must be true regarding this reaction?
For the reaction to occur at room temperature, an external energy source must be provided to drive the reaction, and the reaction will absorb heat from the surroundings. The reaction is non-spontaneous because it does not occur naturally without intervention.
Is the reaction exergonic and spontaneous or not?
Yes, the reaction is exergonic and spontaneous.
When Could A High Temperature Make A Reaction That Was Nonspontaneous At Low Temperature Spontaneous?
A high temperature can make a nonspontaneous reaction spontaneous by providing enough energy to overcome the activation energy barrier, allowing the reaction to proceed. At low temperatures, the kinetic energy of the molecules may not be sufficient for them to react, but increasing the temperature can provide the necessary energy for the reaction to occur spontaneously.
Under what conditions will a low temperature make a reaction spontaneous?
if H and S are both negative
At which temperature would a reaction with AH = -92 kJ/mol, AS = -0.199kJ/(mol·K) be spontaneous?
the answer is 400
