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If you take entropy as an extensive variable then the magnitude of the entropy does depend on the number of moles. If you take entropy as an intensive variable then its magnitude it dependent on the other variables you combined it with. However sense you always deal with entropy as a change in entropy the magnitude doesn't really matter.
Entropy does depend on the number of moles present in the system. Entropy is an extensive property, meaning it is dependent on the amount of substance present. As the number of moles increases, the entropy of the system also typically increases.
The entropy of a single molecule is a function of the possible states of that molecule and their relative probabilities. The same function extended to two molecules is the product of the two entropies of the individual atoms. With the addition of each molecule, the entropy grows exponentially.
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How does entropy change in gas reactions?
Reactions that increase the moles of gas will increase in entropy.
What are 3 ways to increase entropy?
Increase the temperature of a system, as higher temperatures generally lead to higher entropy. Increase the number of particles in a system, since more particles result in more possible microstates and higher entropy. Allow a system to mix with its surroundings, as this increases the number of ways energy and matter can be distributed, increasing entropy.
What describes the entropy change of gas reaction?
if there is an increase in the number of gas molecules , then ^S > 0
Is N½ g 3H½ g æ 2NH¾ g entropy positive or negative?
The reaction is 2NH₃(g) → N₂(g) + 3H₂(g), and since the number of moles of gas decreases from 2 moles to 4 moles, the entropy change is negative.
What would cause entropy cause in a reaction?
The products becoming more spread out.
How does entropy change in gas reactions?
Reactions that increase the moles of gas will increase in entropy.
What are 3 ways to increase entropy?
Increase the temperature of a system, as higher temperatures generally lead to higher entropy. Increase the number of particles in a system, since more particles result in more possible microstates and higher entropy. Allow a system to mix with its surroundings, as this increases the number of ways energy and matter can be distributed, increasing entropy.
What describes the entropy change of gas reaction?
if there is an increase in the number of gas molecules , then ^S > 0
Is N½ g 3H½ g æ 2NH¾ g entropy positive or negative?
The reaction is 2NH₃(g) → N₂(g) + 3H₂(g), and since the number of moles of gas decreases from 2 moles to 4 moles, the entropy change is negative.
What would cause entropy cause in a reaction?
The products becoming more spread out.
Is the entropy change increased or decreased in 2 Na 2 H2O -- 2 NaOH H2?
The entropy change is increased in the given reaction. This is because there are more moles of gaseous products compared to the reactants, which leads to an increase in disorder or entropy in the system.
Wich reactions would have an increase in entropy?
A gas typically increases the entropy much more than the increase in moles.
What would cause entropy to decrease in a reaction?
The products becoming more ordered than the reactants
How many moles in NaCHO3?
A mole is a defined number of atoms/molecules of an element/compound. Therefore, the number of moles of NaCHO3 will depend on the mass of NaCHO3 that you have. To calculate the number of moles in a known sample, divide the mass of the sample (in grams) by the molecular weight.
What reaction would have an increase in entropy?
At high temperature the entropy increase.
What is the greatest increase in a entropy reaction?
The products becoming more spread out.
What would represent an increase in entropy?
An increase in entropy would be represented by a system becoming more chaotic, disordered, or having more possible configurations. This could be due to the mixing of different substances, an increase in temperature, or the natural tendency of systems to move towards equilibrium.
