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The change in enthalpy between products and reactants in a reaction

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What equation is used to calculate the free energy change a reaction?

Delta G (written triangle G) = Delta H -T Delta S


At which temperature would a reaction with h-92 kjmol s-0.199 kj(molk) be spontaneous?

To determine whether the reaction is spontaneous, we can use the Gibbs free energy equation, ( \Delta G = \Delta H - T\Delta S ). For the reaction to be spontaneous, ( \Delta G ) must be less than 0. Given ( \Delta H = -92 , \text{kJ/mol} ) and ( \Delta S = -0.199 , \text{kJ/(mol K)} ), we can set up the inequality ( -92 , \text{kJ/mol} - T(-0.199 , \text{kJ/(mol K)}) < 0 ). Solving this will give the temperature threshold above which the reaction becomes spontaneous.


How can photosynthesis be written as an equation?

Well the equation is: 6CO2 + 6H2O + -s-u-n-l-i-g-h-t--> C6H12O6 + 6O2.


What determine whether a reaction took place?

Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)


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

∆G = ∆H - T∆S and for it to be spontaneous, ∆G should be negative. If both ∆H and ∆S are positive, in order to get a negative ∆H, the temperature needs to be elevated in order to make the ∆S term greater than the ∆H term. So, I guess the answer would be "the higher the temperature, the more likely will be the spontaneity of the reaction."

Related Questions

What equation is used to calculate the free change of a reaction?

Delta G (written triangle G) = Delta H -T Delta S


What equation is used to calculate the free energy change a reaction?

Delta G (written triangle G) = Delta H -T Delta S


What is delta S in the equation delta G delta H - T delta S?

The change in enthalpy between products and reactants in a reaction


What is delta S in the equation delta G delta H-T delta S?

Delta S represents the change in entropy of a system. In the equation delta G = delta H - T delta S, it is used to determine the contribution of entropy to the overall change in Gibbs free energy. A negative delta S value suggests a decrease in the disorder of a system.


What could make Delta become negative at a given enthalpy and entropy?

The equation for ∆G is ∆G = ∆H - T∆S H is enthalpy and S is entropySo, ∆G is negative if T∆S is greater than ∆H


What is delta h in the equation delta g delta h - t delta s?

Delta H represents the change in enthalpy of a system. In the equation ΔG = ΔH - TΔS, it is the enthalpy change of the system. It indicates the heat absorbed or released during a reaction at constant pressure.


What equation is used to calculate the free energy change of a reaction?

The equation used to calculate the free energy change of a reaction is ΔG = ΔH - TΔS, where ΔG is the change in free energy, ΔH is the change in enthalpy, T is the temperature in Kelvin, and ΔS is the change in entropy.


What is the equation for projectile motion?

h(t)= -g*t^2 + V*t +h where h(t) is the periodic time, t is the overall time, V is the initial velocity, h is the initial hieght, and g is the gravitational constant either 16 or 4.9. This equation will trace the path taken by a projected object.


What could make delta G become negative at a given enthalpy and entropy?

For delta G to become negative at a given enthalpy and entropy, the process must be spontaneous. This can happen when the increase in entropy is large enough to overcome the positive enthalpy, leading to a negative overall Gibbs free energy. This typically occurs at higher temperatures where entropy effects dominate.


What is h in equation g h -t s?

The change in entropy between products and reactants in a reaction.


What is the relationship between the Delta G equation and the equilibrium constant (Keq)?

The relationship between the Delta G equation and the equilibrium constant (Keq) is that they are related through the equation: G -RT ln(Keq). This equation shows how the change in Gibbs free energy (G) is related to the equilibrium constant (Keq) at a given temperature (T) and the gas constant (R).


What is T in the equation G H - T S?

The change in entropy between products and reactants in a reaction.