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if there is an increase in the number of gas molecules , then ^S > 0
Vickie Schuster
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Which of the following describes the entropy change of a gas reaction?
If there is an increase in the number of gas molecules, then S > 0.
How does entropy change in gas reactions?
Reactions that increase the moles of gas will increase in entropy.
How do you predict delta s?
delta s (change in entropy) is positive when.... -you go from a solid to a liquid -you go from a liquid to a gas -when you go from a solid to a gas -when there are more mols of products than mols of reactant the change in entropy is negative when the reverse of the above happens
What happens to the entropy in the reaction I2 s I2 g?
The entropy of the system increases during the sublimation of I2(s) to I2(g) because the randomness and disorder of the gas phase is higher compared to the solid phase. Therefore, the entropy of the reaction is positive.
What would happen to the entropy in the reaction 2O3 g 3O2 g?
It increases
Which of the following describes the entropy change of a gas reaction?
If there is an increase in the number of gas molecules, then S > 0.
How does entropy change in gas reactions?
Reactions that increase the moles of gas will increase in entropy.
Which would represent an increase in entropy?
thawing
What would happen to entropy in a solid to gas reaction?
It increases; more freely moving particles.
Do chemical reactions that increase entropy tend to occur spontaneously?
Reactions that increase the randomness. Reactions that have more moles of gas on the product side than the reactant side increase entropy. Also reactions that have a positive change in spontaneity and a negative enthalpy.
Under what condition can entropy decrease in a system?
Entropy can decrease in a system if energy is removed or transferred elsewhere, causing a decrease in randomness or disorder within the system. This could occur, for example, if the system undergoes a phase transition where the molecules become more ordered or structured.
What would cause entropy to increase in reaction?
The products becoming more spread out.
What changes a liquid or a solid to a gas?
usually a change in temperature.... OR PRESSURE Which all mean a change in entropy of the system
What occurs in a reaction in which the reactant is a solid and the product is a gas?
In this reaction, the solid reactant will undergo a phase change to form a gas as the product. This process typically involves the breaking of intermolecular forces holding the solid structure together, allowing the particles to move more freely and escape into the gas phase. The reaction may involve heating or a change in pressure to facilitate the phase transition.
Is Gas produced from a reaction is a phase change and not a chemical change.?
A gas released during a chemical reaction is a chemical change.
How do you predict delta s?
delta s (change in entropy) is positive when.... -you go from a solid to a liquid -you go from a liquid to a gas -when you go from a solid to a gas -when there are more mols of products than mols of reactant the change in entropy is negative when the reverse of the above happens
Why sublime substance change directly from solid to gas on heating?
Because the entropy is negative making it spontaneous.
