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Q: What signs of delta h s and g favor spontaneity?
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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."


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

∆G = ∆H - T∆S and ∆G has to be negative for the reaction to be spontaneous. So, ultimately the effect of temperature will depend on the value of ∆H. If ∆H is negative, and ∆S is positive, then temperature won't matter, and reaction will be spontaneous. If ∆H is positive, and ∆S is positive, then a high temperature will favor spontaneity. If ∆H is negative and ∆S is negative, then a low temperature will favor spontaneity. So, the answer to your question is the higher the temperature the more likely the reaction will occur spontaneously.


How does Gibbs free predict spontaneity?

If G < 0, the reaction is spontaneous.


If you double the amount of enzyme what happens to delta G?

enzymes dont affect the delta G, they only lower the activation energy. Therefore, the delta G stays the same


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

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


What is Gibbs Free energy?

The usable energy released or absorbed by a reaction.


What equation is used to calculate the free energy 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


When a chemical reaction has a negative delta G is the reaction exothermic or endothermic?

When a chemical reaction has a negative delta G, the reaction is exothermic because delta G is the change in energy of a system and the change in its entropy. If the effect of a reaction is to reduce G, the process will be spontaneous so delta G is negative. Hope this helps :)


What conditions make delta G always positive?

G is always positive when enthalpy increases and entropy decreases.


Is cellular respiration a negative or positive delta g?

Photosynthesis is a positive delta G as it produces more free energy than it uses. The overall result of the Gibbs equations shows that delta G is positive


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

The change in enthalpy between products and reactants in a reaction