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State the condition of spontaneity and e...

State the condition of spontaneity and equilibrium in terms of Gibbs free energy change of a system.

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The condition of spontaneity in terms of Gibbs free energy is `DeltaG lt0`. The condition of equilibrium in terms of Gibbs free energy is `DeltaG=0`.
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Define Gibb’s free energy.

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What are the conditions of spontaneity and equilibrium for a process in an isolated system?

Show that in a process at constant temperature and pressure, the Gibbs free energy change of a system, DeltaG=-TDeltaS_("total") .

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(i) What is the relation between Gibbs free energy change and spontaneity of a process? (ii) Write down the relation between standard free energy change and equilibrium constant.

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