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What is ∆G for the decomposition of CaCO3 at 298 K and a partial pressure of CO2 of 4.00 × 10-4 bar?Thermodynamics Chemistry Question

Question

What is ∆G for the decomposition of CaCO3 at 298 K and a partial pressure of CO2 of 4.00 × 10-4 bar?
CaCO3(s) → CaO(s) + CO2(g) ∆Grxn (298 K, PCO2 = 0.400 mbar) = ???

A.

–131 kJ mol–1

B.

112 kJ mol–1

✓ Correct
C.

131 kJ mol–1

D.

150 kJ mol–1

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