(a) State whether entropy increases or decreases during each of the following processes (i) condensation of steam; (ii) melting of wax; (iii) dissolution of sugar in water; (iv) abscas on charcoal.
(b) What deduction can be made in each case given that the value of the free energy change for a particular reaction is: (i) zero; ii) negative
Explanation
(a) (i) The entropy decreases (ii) The entropy increases (iii) The entropy increases (iv) The entropy decreases.
(b)(i) The reaction is at equilibrium. (iii) The reaction is feasible.
