(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.