Advertisement Remove all ads

Define Entropy. - Chemistry

Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads
Definition

Define entropy.

Advertisement Remove all ads

Solution

Conditions for spontaneous and non-spontaneous reactions in terms of free energy
change:
 a. For a spontaneous process, ∆G < 0 means the Gibbs energy of the system decreases
during the process. The end of the spontaneous process is equilibrium which
corresponds to minimum in G.
 b. Hence the change in Gibbs energy, ∆G must be zero for the process at equilibrium.
Thus if,
 a. ∆G < 0, the process is spontaneous.
 b. ∆G > 0, the process is non-spontaneous.
 c. ∆G = 0, the process is at equilibrium.

Definition of entropy: The property of a system which measures the degree of disorder or randomness in the system is called entropy. It is denoted by letter S.

Concept: Chemical Thermodynamics and Energetic - Free Energy Change for Spontaneous and Non Spontaneous Processes
  Is there an error in this question or solution?

APPEARS IN

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×