Question

PLEASSEEE HELP FAN & MEDAL
The gibbs free energy equation is used to predict whether a reaction will be spontaneous or not. Identify each variable in the equation
ΔG = ΔH - TΔS
Do you expect the changes in G, H, and S to be positive or negative for an always spontaneous process ?

Answer 1

@Rushwr can you please help with this one

Answer 2

\[\Delta G\] is the the gibbs free energy
\[\Delta H \] is the sum of the enthalpy
\[\Delta S\] is the entropy difference of the system
T is the temperature in kelvin

Answer 3

\[\Delta G < 0\]
When gibbs free energy is less than zero ( meaning; negative ) then the reaction is spontaneous
\[\Delta G = 0 \]
When the gibbs free energy is equal to zero then the reaction is in equilibrium.
\[\Delta G > 0 \]
When the gibbs free energy is more than zero ( meaning; positive ) then the reaction is not spontaneous.

Answer 4

So for a reaction to be spontaneous the gibbs free energy (G) should be NEGATIVE.
Other 2 differ in place.

Answer 5

Spontaneous means the reaction will go from (reactants) to products. but it doesn't say how long it will take.

Answer 6

youre such a life save @Rushwr
so it would be a spontaneous reaction then ?

Answer 7

They have not given a specific reaction to talk about.

Answer 8

so then what would I put for this question..... Do you expect the changes in G, H, and S to be positive or negative for an always spontaneous process ? @Rushwr