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Ch.19 - Chemical Thermodynamics
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All textbooksBrown 15th EditionCh.19 - Chemical ThermodynamicsProblem 34a

Chapter 19, Problem 34a

(a) In a chemical reaction, two gases combine to form a solid. What do you expect for the sign of ΔS?

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Hello everyone today. We are being asked to identify the sign for the entropy change of the system for the condensation of ethanol. So we can recall that condensation is a process of going from a gas to a liquid. In other words, we are going from a state with the highest entropy, which is gas, to a state of lower entropy, which is a liquid. And so we can therefore say that we are going to have a negative delta S. Sign for the entropy change. I hope this helped, and until next time.
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