Practice question · Match the pairs
Match each quantity to what it determines.
- The heat exchanged at constant pressure
- How fast the process actually goes
- The change in the number of accessible arrangements
- Whether the process can proceed spontaneously
Hints
- Three are thermodynamic and one is kinetic.
- Only one of these appears in an Arrhenius expression.
Show the answer
- → The heat exchanged at constant pressure
- → The change in the number of accessible arrangements
- → Whether the process can proceed spontaneously
- → How fast the process actually goes
Why
Enthalpy handles heat, entropy handles disorder, Gibbs energy combines them into a spontaneity criterion, and activation energy, which appears in none of them, is what sets the rate.
Practise Gibbs Free Energy and Spontaneity
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