What is the value of change in entropy at equilibrium?

Define Entropy. What is the value of Entropy change at equilibrium in a spontaneous reversible process?

For change in entropy, units are

What is the change of entropy in irreversible adiabatic change?

What will be the change in entropy in an irreversible cyclic process ?

What is entropy? What is the value of entropy of a perfectly crystalline substance at absolute zero?

Change in entropy is negative for

Change in entropy is negative for

What happens to change in entropy when water is converted into ice ?

What will be the change in entropy of the surroundings in a spontaneous process occurring in an isolated system?

What is the change in entropy when ice melts to given water.