Entropy

Card Set Information

Author:
Anonymous
ID:
193213
Filename:
Entropy
Updated:
2013-01-16 14:57:36
Tags:
Chemistry
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Description:
Advanced Higher Chemistry - Unit Two - Entropy
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  1. What is entropy?
    The entropy of a system is the degree of disorder of the system - the greater the disorder the greater the entropy
  2. As temperature increases entropy...?
    increases
  3. Are melting and evaporation accompanied by an increase or decrease in entropy?
    Increase
  4. What is the entropy of a perfect crystal at 0K?
    Zero
  5. What is the standard entropy of a substance?
    The entropy value for the standard state of the substance
  6. What formula is used to calculate the change in standard entropy in a reaction system?
    ΔS˚ = ΣΔS˚(Products) - ΣΔS˚(Reactants)

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