CHMA11H3 Chapter 17: CHMA11 Chapter 17

Indicate whether each statement is true or false. (a) The second law of thermodynamics says that entropy is conserved. (b) If the entropy of the system increases during a reversible process, the entropy change of the surroundings must decrease by the same amount. (c) In a certain spontaneous process the system undergoes an entropy change of 4.2 J/K; therefore, the entropy change of the surroundings must be -4.2 J/K.

What is the second law of thermodynamics? How is Entropy defined? Use the second law of thermodynamics to show that heat cannot spontaneously flow from a cold body to a hot body

In certian spontaneous process the system undergoes an entropy change, ΔS = 42 J/K. Using the second law of thermodynamics what can you conlude about ΔS_surr?