In: Anatomy and Physiology
Energy | Entropy |
1. Energy is the ability to do the work. Usually in comparison to entropy Gibb's free energy is considered. | 1. Entropy is defined as a measure of disorderliness in the system. |
2. Gibb's free energy change is designated by ![]() |
2. Entropy change is designated as ![]() ![]() ![]() ![]() |
3. Gibb's free energy is given by the equation. Where, S = entropy, H = enthalpy |
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4. Units of Gibb's free energy are KJmol-1 | 4. Entropy is measured in J/K |
5.If gibb's free energy is negative, forward reaction takes place and if it is positive reverse reaction takes place spontaneously | 5. Entropy determines whether the given reaction is endothermic (S<0) or exothermic (S>0) |
6. It gives information about reactivity | 6. It gives information about the randomness in the given system |
7.The gibbs free energy gives information about the activation energy for a given reaction | 7. Higher values of entropy indicates higher disorderliness |