Thermodynamics and Spontaneous Processes Consider a sample of water at 25oC in a beaker in a room at 50oC.
a. What change do you expect to observe in the water sample? Would this be a spontaneous process or not?
b. What are the enthalpy and entropy changes for this change in the water sample? (Just indicate the sign of the changes.) Explain your answers.
c. Does the entropy of the water increase or decrease during the change? How do you know?
d. Is there a change in free energy for the water sample? If so, indicate the sign of the free energy change and explain how you arrived at your answer.
Consider the same sample of water, but starting at 75oC in a room at 50oC.
e. What change would you observe in the water sample? Would this change be a spontaneous process or not?
f. What are the enthalpy and entropy changes for the water sample? (Just indicate the sign of the changes.) Explain your answer