We’re being asked topredict how the entropy of each substanceisinfluenced by the offered process.

You are watching: Predict how the entropy of the substance is affected

Recontact thatentropyis thedegree of chaos or disorder of a systemand also that it counts on the following:

1. Phase:Thegas phase has the highest possible entropy, adhered to by the liquid, and also then thesolid phase through the lowest entropy.

Gas > Liquid > Solid

2. Complexity:More elementsin the compound leads togreater entropy.

Ex. NO3(g)<4 elements>has actually higher entropy than NO2(g)<3 elements>.

3. Mass:Thebetter the mass, then thegreater the entropy.

Ex. Xe(g)has actually greater entropy than He(g).

For a offered procedure,entropy (ΔS) will certainly either increase or decrease.

Remember thatphase changes result in a readjust in entropy: 83% (412 ratings) Problem Details

Predict just how the entropy of the substance is affected in the following processes:

a) Ar(l) → Ar(g)

b) Cu(s, 300 K) → Cu(s, 800 K)

c) H2O (g, 75 Torr, 300 K) → H2O(g, 150 Torr, 300 K)

Which of the adhering to reactions have actually a positive ΔSrxn? Check all that apply.

a) A(s) + B(s) → C(g)

b) A(g) + B(g) → C(g)

c) 2A(g) + B(g) → 4C(g)

d) 2A(g) + B(g) → C(g)

Discover this topic by watchingEntropy Concept Videos
All Chemisattempt Practice Problems Entropy Practice Problems
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What clinical idea carry out you must recognize in order to solve this problem?

Our tutors have actually suggested that to deal with this difficulty you will certainly should use the Entropy idea. You have the right to check out video lessons to learn Entropy. Or if you require more Entropy practice, you can additionally exercise Entropy exercise problems.

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