Consider the following figure representing the increase in entropy of a substance from absolute zero

Question

Consider the following figure representing the increase in entropy of a substance from absolute zero to its gaseous state at some temperature. $\Delta S^{\circ}$ (fusion) and $\Delta S^{\circ}$ (vaporisation) are respectively indicated by\

Professor PC Thomas Classes · Answer

(c) : Fusion (fusion temperature $T_1$ ) and vaporisation (vaporisation temperature $T_2$ ) take place at constant temperature.
Thus, $\Delta S^{\circ}$ (fusion) $=B C$
$\Delta S^{\circ}($ vaporisation $)=D E$