Entropy Video Lessons

Concept

# Problem: Which of the following result(s) in an increase in the entropy of the system?I. condensation of a gas to a liquidII. decreasing the volume of 1.0 mol of an ideal gas at constant temperatureIII. dissolving sugar in waterIV. heating 1.0 mol of an ideal gas at constant volume

###### FREE Expert Solution

We’re being asked to which of the following result(s) in an increase in the entropy of the system.

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).

91% (20 ratings)
###### Problem Details

Which of the following result(s) in an increase in the entropy of the system?

I. condensation of a gas to a liquid

II. decreasing the volume of 1.0 mol of an ideal gas at constant temperature

III. dissolving sugar in water

IV. heating 1.0 mol of an ideal gas at constant volume

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.