(a)
Interpretation:
The signs of the entropy
Concept introduction:
Entropy change:
The sign of
- When a molecule is broken down and gives two or more smaller molecules.
- When the moles of gas is increases (by the breaking of molecules)
Solid changes to liquid or gas state or liquid state changes to gas state.
Entropy
If the disorder increases in a system, then
If the disorder decreases in a system, then
If the disorder equal in a system, then
(b)
Interpretation:
The temperature at which
Concept introduction:
Enthalpy change of reaction:
The enthalpy change of a reaction is given by
Free energy:
Free energy is measured by subtracting the product of temperature and entropy from the enthalpy of a system.
Relationship between
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