Entropy

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4 Terms

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Define Entropy

The measure of disorder.

The greater the disorder the greater the entropy.

Measured in ΔS

2
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What is the general trend of entropy?

S(gas) > S(liquid) > S(solid)

3
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How can standard entropy (ΔSθ) be calculated?

ΔSθ = Sθ (products) — Sθ (reactants)

Unit: JK mol-1

4
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What is the trend between entropy and temperature?

Entropy increases as temperature increases as the particles gain energy and move further apart

i.e they become more disordered