Chemical Thermodynamics Quiz

sc19.5 Gibbs Free Energy

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:

CaCO3 (s)  →  CaO (s) + CO2 (g)

SubstanceΔGf°
calcium carbonate (CaCO3(s)) -1129.1 kJ/mol
calcium oxide (CaO(s)) 603.3 kJ/mol
carbon dioxide (CO2(g)) -394.4 kJ/mol


Wanted: change in free energy (ΔG°) in kJ? 		 kJ

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