First slide
Gibb's Helmholtz equation
Question

Consider the process, 2A(s)+B2(g) 2AB(g), H=-342kJ. Equilibrium temperature of the process is 603K. The process is 

Moderate
Solution

Given, 

ΔHsystem=Ve;ΔSsys=SPgSRgΔSsys=21=1ΔSsys==+Ve;ΔG=ΔHTΔSΔG=T+ΔGsys  is  negative  atall  temperatures.

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