1. Which of the following changes lead to a decrease in entropy? a. sugar dissolving in coffee b. mixing of pure gases c. the sublimation (vaporization) of dry ice (solid carbon dioxide) d. melting snow e. halving the volume of a gas

8 As you dissolve salt in water, what change would you expect to occur? A B C D The entropy of the system will increase. The kinetic energy of the water molecules decreases. The salt consumes energy as it transfers entropy The water molecules become more closely packed as the temperature increases

Compare what will happen to the entropy of the whole system in the following two scenarios: A) if the oil molecules are all clumped together and the clump is surrounded by water and B) if the oil molecules are spread out evenly throughout the water, each individual oil molecule surrounded by water?

In which of the following processes would the entropy of the system increase?   A liquid forming from a gas.   A solid forming from a gas.   The number of gas molecules increasing during a chemical reaction.   A solid precipitating from a solution.