Entropy is the measure of disorder/randomness in a system.
Disorder increases from solid -> liquid -> gas, hence entropy will also increase.
A highly ordered system such as a solid block of coal will have a very low entropy, but a very disordered system such as a high temp. gas will have a very high entropy!
Disorder increases from solid -> liquid -> gas, hence entropy will also increase.
A highly ordered system such as a solid block of coal will have a very low entropy, but a very disordered system such as a high temp. gas will have a very high entropy!
Original post by Aana12
Does entropy increase or decrease from a aqueous ion to a solid?
Entropy is the amount of disorder in a substance, so when going from an aq ion to a solid it decreases
Original post by FusionNetworks
Entropy is the measure of disorder/randomness in a system.
A better definition is that entropy is a measure of the number of configurations available to the particles in the system.
A collection of ions in a crystalline solid will have many fewer possible configurations than an equivalent number in dilute solution. Hence, the entropy per ion increases (dramatically) on dissolution. In some cases, this is sufficient to drive the dissolution of a salt (e.g. ammonium nitrate) even if the overall reaction is endothermic.
Original post by lordaxil
A better definition is that entropy is a measure of the number of configurations available to the particles in the system.
A collection of ions in a crystalline solid will have many fewer possible configurations than an equivalent number in dilute solution. Hence, the entropy per ion increases (dramatically) on dissolution. In some cases, this is sufficient to drive the dissolution of a salt (e.g. ammonium nitrate) even if the overall reaction is endothermic.
A collection of ions in a crystalline solid will have many fewer possible configurations than an equivalent number in dilute solution. Hence, the entropy per ion increases (dramatically) on dissolution. In some cases, this is sufficient to drive the dissolution of a salt (e.g. ammonium nitrate) even if the overall reaction is endothermic.
True, if your doing A levels then my answer is the barebones xD
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