which has more entropy

[Cadence Chang]

If there was a reaction where there were two moles of gas converted to one mole of gas but the product is a larger molecule than either of the reactants, would there be an increase in entropy or decrease?

For example:

A2(g) + B2(g) --> A2B2(g)

[Lucas Koch 1I]

All gases act the same so even though the product is larger than either reactant, it doesn't matter. For example, CH3(g) acts the same as H2(g) even though it larger. In this case it would be an entropy decrease because moles of gas is decreasing.

[Marleena]

The entropy would decrease because the moles of the reaction decrease. This occurs even if the molecule is larger.

[gwenkelley3L]

Since the moles decrease, the entropy would decrease!

[Ryan Blaydon 1K]

No matter whether a molecule is larger or smaller every mole of gas no matter the element or substance is going to have 6.02 x 10^23 particles. This means the entropy would always be decreasing since 1 mole of gas will have less particles than the two moles of gas.

[905740390]

Seeing that the moles decrease, this tells us that the entropy will decrease as well.

[Parinita Jithendra 2A]

the entropy would decrease in this case because the moles of the gas in the reaction decrease

[Michael Crannell 1H]

The entropy will always decrease when the moles of gas decrease.

[Nicolas Zarco 2K]

The reactants would have a higher entropy as there are more moles of gas. Even if the molecule is larger it still has fewer moles of gas meaning that the entropy will be smaller.

[Akane Shimoyoshi 3F]

The number of moles of gas decrease from 2 moles to 1 mole, so the entropy decreases.

[Ellen Brock 2I]

entropy in a reaction like this is dependent on the moles. So if moles decrease from the R to P then the entropy will also decrease

[Chiara Frank]

Hello! As others said, the entropy would decrease because the number of moles of gas decrease from reactants to products. To add on, this is because with fewer moles, there can be more disorder or differing orientations of the molecules, and thus the entropy would increase. I hope this was helpful!