Problem: Arrange the following set of systems in order of increasing entropy. Assume one mole of each substance and the same temperature for each member of a set.H2(g), HBrO4(g), HBr(g)

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FREE Expert Solution

We’re being asked to rank the given compounds in order of increasing entropy at 25 ˚C

The given compounds are: H2(g), HBrO4(g), HBr(g)


Recall that entropy is the degree of chaos or disorder of a system and that it depends on the following:


1. Phase: The gas phase has the highest entropy, followed by the liquid, and then the solid phase with the lowest entropy.

Gas > Liquid > Solid


2. Complexity: More elements in the compound leads to higher entropy.

Ex. NO3(g) [4 elements] has higher entropy than NO2(g) [3 elements].


3. Mass: The greater the mass, then the greater the entropy.

Ex. Xe(g) [greater mass] has higher entropy than He(g).



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Problem Details

Arrange the following set of systems in order of increasing entropy. Assume one mole of each substance and the same temperature for each member of a set.

H2(g), HBrO4(g), HBr(g)

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Entropy concept. You can view video lessons to learn Entropy. Or if you need more Entropy practice, you can also practice Entropy practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Du's class at UGA.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.