6.3 The reaction, Cr2O3+2Al → Al2O3+2Cr (?rG0 = – 421kJ) is thermodynamically feasible as is apparent from the Gibbs energy value. Why does it not take place at room temperature?
6.3 The reaction, Cr2O3+2Al → Al2O3+2Cr (?rG0 = – 421kJ) is thermodynamically feasible as is apparent from the Gibbs energy value. Why does it not take place at room temperature?
The reaction,
Cr2O3 + 2 Al → Al2 O3 + 2 Cr (ΔG0 = – 421 kJ)
Is thermodynamically feasible as is apparent from Gibbs energy value. The change in Gibbs free energy is
related to the equilibrium constant, k as
ΔG = - RT ln K
A certain amount of energy activation is required even for such reactions which ar
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