Calcium oxide ( ) prepared by reaction Calculate free energy change for the reaction…

CHEMISTRY · Subjective · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

Calcium oxide (CaO\text{CaO}) prepared by reaction CaCO3(s)→CaO(s)+CO2(g)\text{CaCO}_3(\text{s}) \rightarrow \text{CaO}(\text{s}) + \text{CO}_2(\text{g}) Calculate free energy change for the reaction (ΔfG∘\Delta_f G^\circ) in kJ/mole\text{kJ/mole} at 300 K Given : ΔfH∘(CaO,s)=−635 kJ/mole\Delta_f H^\circ(\text{CaO}, \text{s}) = -635 \text{ kJ/mole} ΔfH∘(CO2,g)=−394 kJ/mole\Delta_f H^\circ(\text{CO}_2, \text{g}) = -394 \text{ kJ/mole} ΔfH∘(CaCO3,s)=−1207 kJ/mole\Delta_f H^\circ(\text{CaCO}_3, \text{s}) = -1207 \text{ kJ/mole} S∘(CO2,g)=214 J/K-moleS^\circ(\text{CO}_2, \text{g}) = 214 \text{ J/K-mole} S∘(CaO,s)=40 J/K-moleS^\circ(\text{CaO}, \text{s}) = 40 \text{ J/K-mole} S∘(CaCO3,s)=94 J/K-moleS^\circ(\text{CaCO}_3, \text{s}) = 94 \text{ J/K-mole}; all given data at 300 K

Related theory

Browse the problem library