Final answer:
The false statement among the given options is that free atoms have greater entropy than molecules. This is incorrect because molecules, especially if larger or more complex, tend to have more internal degrees of freedom, contributing to a higher entropy.
Step-by-step explanation:
The student's question revolves around concepts of entropy, which is a measure of the randomness or disorder of a system. Considering the information given, we can assess each statement for its accuracy regarding entropy.
- The entropy of a gas is greater than the entropy of a liquid (correct, as gases have more degrees of freedom and thus more possible microstates).
- Entropy generally increases with increasing molecular complexity (correct, because more complex molecules have more motions available leading to a greater number of microstates).
- Free atoms have greater entropy than molecules (false, this is because molecules typically have more internal degrees of freedom, especially if they are larger or more complex).
- Entropy increases with dissolution (correct, since solute particles become separated from one another and the disorder of the system increases).
- For noble gases, entropy increases with size (correct, as heavier atoms have more translational motion, hence more microstates).
The false statement is c. free atoms have greater entropy than molecules.