Calculate standard entropy change in the reaction
`Fe_(2)O_(3)(s)+3H_(2)(g) rarr 2Fe(s)+3H_(2)O(l)`
Given `: S_(m_(0))(Fe_(2)O_(3).S)=87.4,S_(m)^(@)(Fe,S)=27.3`
`S_(m)^(@)(H_(2),g)=130.7,S_(m)^(@)(H_(2)O,l)=69.9JK^(-1)mol^(-1)`
A. `-212.5JK^(-1)mol^(-1)`
B. `-215.2JK^(-1)mol^(-1)`
C. `-120.9JK^(-1)mol^(-1)`
D. none of these