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Spontaneous Rxns
cava chem 303 s2d56 5.11 Spontaneous Reactions
Question | Answer |
---|---|
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. |