Gibbs Free Energy

Gibb's Free Energy and Spontaneity

Gibb's Free Energy and Spontaneity | Thermal Expansion | Linear Expansion | Area Expansion | Volume Expansion | Buoyancy Problems

(i) Spontaneity of a process can be determined from the entropy change and also from the Gibbs free energy change. But the Gibbs free energy change in more useful than entropy change to determine the spontaneity of a process. Explain it. (ii) Show that Gibbs energy change of a system at certain temperature and pressure, DeltaG=DeltaH-TDeltaS .

Define Gibb's free energy .

Gibb's free energy G is defined as

Gibb's free energy and spontaneity of a Chemical Reactions

For a spontaneous reaction Gibb's free energy change is always..............