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Entropy (1st case (Entropy changes associated with changes in state.…
Entropy
1st case
Entropy changes associated with changes in state. Entropy increases as a substance changes from a solid to a liquid and from a liquid to a gas.
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5th case
The random motion of the particles of a substance increases as its temperature increases. When temperature increases, kinetic energy increases and particles move more freely causing entropy to increase.
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3rd case
Assuming no change in physical state occurs, the entropy of a system usually increases when the number of gaseous product particles is greater than the number of gaseous reactant particles
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4th case
Entropy increases when a solid or liquid dissolves in a solvent. When the solute dissolves in the solvent, its particles become more free.
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2nd case
The dissolving of a gas in a solvent always results in a decrease in entropy. Therefore, when a gas is dissolved in a liquid it limits its randomness and movement causing a decrease in entropy
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