10 Questions
What is the relationship between a system's entropy and the number of possible microstates?
Entropy increases logarithmically with the number of microstates.
In which phase do atoms/molecules exhibit greater freedom of motion, resulting in a greater number of microstates?
Liquid phase
Which process is characterized by an increase in entropy?
Melting
How does the entropy of a mixture compare to that of pure substances?
Entropy of a mixture is greater than that of pure substances.
According to the Second Law of Thermodynamics, what happens to the entropy of the universe during spontaneous changes?
It increases.
How does the temperature of a substance relate to the average kinetic energy of its particles according to the Kinetic-molecular theory?
Temperature is directly proportional to average kinetic energy.
Heavier atoms possess greater entropy at a given temperature than lighter ones due to what factor?
Higher mass leads to more quantized translational energy levels.
What factor influences the entropy of a system based on the number of molecules present?
Number of molecules affects possible vibrations leading to entropy.
What kind of change in entropy occurs during the process of freezing?
Decrease
Which phase exhibits atoms/ molecules with relatively fixed positions and modest oscillations:
Solid phase
Test your understanding of the factors that influence chemical reactions, including the importance of proper orientation and energy in reactant collisions. Learn about activation energy and how it affects reaction outcomes.
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