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Spontaneous Rxns

cava chem 303 s2d56 5.11 Spontaneous Reactions

QuestionAnswer
A '[...]' reaction is one that happens on its own. A 'spontaneous' reaction is one that happens on its own.
Spontaneous reactions can be [...] or fast. Spontaneous reactions can be slow or fast.
Spontaneous reversible reactions are ones that strongly favor the [...]. Spontaneous reversible reactions are ones that strongly favor the products.
Most spontaneous reactions release something we call *Gibb's [...]*. Most spontaneous reactions release something we call *Gibb's Free Energy*.
Spontaneous reactions are almost always [-thermic] reactions. Spontaneous reactions are almost always exothermic reactions.
Free Energy is energy that we can harness to do [...]. Free Energy is energy that we can harness to do work.
Entropy is energy that (for whatever reason) we can't use to do [...]. Entropy is energy that (for whatever reason) we can't use to do work.
[...] is sometimes referred to as dis-order or randomness. Entropy is sometimes referred to as dis-order or randomness.
K12 really should have introduced [...] first before tackling Gibb's Free Energy. K12 really should have introduced entropy first before tackling Gibb's Free Energy.
Entropy is a [...] concept, so don't worry if you're not really clear on what exactly it is. Entropy is a strange and mysterious concept, so don't worry if you're not really clear on what exactly it is.
The formula for Gibbs free energy is [...]. The formula for Gibbs free energy is ΔG = ΔH – TΔS.
H is the [...] of the system. This is a measure of the total energy absorbed or released by the reaction. H is the enthalpy of the system. This is a measure of the total energy absorbed or released by the reaction.
T is the [...] of the system in kelvins. T is the temperature of the system in kelvins.
S is the [...] of the system. S is the entropy of the system.
When the Gibb's Free Energy change of a reaction is [...], the reaction will be spontaneous. When the Gibb's Free Energy change of a reaction is Negative, the reaction will be spontaneous.
Created by: mr.shapard