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Q: What temperature is a reaction spontaneous?
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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 does temperature affect the spontaneity of a reaction?

Increasing the temperature makes a reaction spontaneous in some situations.


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

A high temperature will make it spontaneous.


At which temperature would a reaction with H-92kJmol S-0.199kJmol(mol.K) be spontaneous?

A reaction will be spontaneous at a given temperature if the Gibbs free energy change (ΔG) is negative. ΔG = ΔH - TΔS. As ΔH = -92 kJ/mol and ΔS = -0.199 kJ/(mol.K), plug these values into the equation along with the temperature to solve for ΔG. If ΔG is negative, the reaction will be spontaneous at that temperature.


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


What conditions will a low temperature male a reaction spontaneous?

A reaction will be spontaneous at low temperatures if the decrease in enthalpy (change in heat content) of the reaction is greater than the decrease in entropy (measure of disorder) multiplied by the temperature. This can be represented by the equation ΔG = ΔH - TΔS, where ΔG is the change in Gibbs free energy, ΔH is the change in enthalpy, T is the temperature in Kelvin, and ΔS is the change in entropy.


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.


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