Question #168d2

1 Answer
May 26, 2017

Statement C is false.


Let's take a look at the different options:

You can see entropy as the amount of disorder in a system. Therefore a gas has more disorder than a solid and will, therefore, have a higher entropy. This statement is true.

The second law of thermodynamics states that the entropy of the universe will always increase. This statement must therefore be true.

The original question was cut off by limited space in the title, but this option should probably be false. I image the option was something like:
Any event that is accompanied by an increase in the entropy of the system will be spontaneous.
This is false since a reaction can take place spontaneously when the entropy is decreasing! Remember that a reaction takes place spontaneously when the Gibbs free energy is negative:

If the entropy is sufficient negative, the Gibbs free energy can be negative and therefore the reaction proceeds spontaneously.

Statement C is false.