Author Question: During a thermodynamic process, the entropy of a certain system decreases by 1.0 J/K. What are some ... (Read 62 times)

mrsjacobs44 · **on:** Jul 28, 2018

During a thermodynamic process, the entropy of a certain system decreases by 1.0 J/K. What are some possible entropy changes that could have occurred within the system's surrounding environment?<--EndFragment-->
1.Its entropy could have also decreased by 1.0 J/K.
2.Its entropy could have remained constant.
3.Its entropy could have increased by 2.5 J/K.
4.All of these could have occurred.

Question 2

In a reversible cycle
1.the change in the entropy of the system (measured over the whole cycle) is always zero.
2.the change in the entropy of the system (measured over the whole cycle) may be zero, but it isn't necessarily always zero.
3.The change in the entropy of the system (measured over the whole cycle) is always greater than zero.
4.The change in the entropy of the system (measured over the whole cycle) is always less than zero.