Chemical Thermodynamics Quiz

sc19.4 Entropy changes in chemical reactions

All processes occur under standard conditions at 298 K unless stated otherwise.
Please round your answers to the hundredths place (e.g. 1.01 g) and try to get within 2% of the correct answer.
You can enter your answers in decimal notation, or you can enter them in scientific notation using 'E' or 'x 10^' for the power of 10 (e.g., enter 6.02 x 10²³ as 6.02E23 or 6.02x10^23).

Helpful resource from LibreTexts "Chemistry - The Central Science":
• 19.7: Free Energy and the Equilibrium Constant

Here's your quiz - good luck!

#	Problem	Answer
1.	Given: 2 ZnO (s) + 2 Cl2 (g)  →  2 ZnCl2 (s) + O2 (g) Substance S° chlorine gas (Cl2(g)) 223.1 J/mol·K oxygen gas (O2(g)) 205.2 J/mol·K zinc chloride (ZnCl2(s)) 111.5 J/mol·K zinc oxide (ZnO(s)) 43.9 J/mol·K Wanted: entropy change (ΔS°) in J/K?	J/K

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