what will be the change of entropy Delta_(r)S^(@)at 298 K for the reaction in which urea is formed from NH_(3) and CO_(2) ? 2NH_(3)(g)+ CO_(2)(g) to NH_(2)CONH_(2)(aq)+H_(2)O(l)[given ,the standard entropy ofNH_(2)CONH_(2)(aq) , CO_(2)(g), NH_(3)(g)and H_(2)O(l)are 174.0 , 213. 7, 192.3 and 69.9 JK^(-1)mol^(-1) respectively]

what will be the change of entropy Delta_(r)S^(@)at 298 K for the reac

1.	what will be the change of entropy Delta_(r)S^(@)at 298 K for the reaction in which urea is formed from NH_(3) and CO_(2) ? 2NH_(3)(g)+ CO_(2)(g) to NH_(2)CONH_(2)(aq)+H_(2)O(l)[given ,the standard entropy ofNH_(2)CONH_(2)(aq) , CO_(2)(g), NH_(3)(g)and H_(2)O(l)are 174.0 , 213. 7, 192.3 and 69.9 JK^(-1)mol^(-1) respectively]
Answer» ` 200 JK^(-1) mol ^(-1)` `-35.44JK^(-1) mol^(-1)` `-354.4 JK^(-1) mol ^(-1)` `425.2 JK^(-1) mol^(-1)` Solution :for the given change ` Delta_(r)S^(@)= sumn_(p)S_(p)^(@)- sumn_(R)S_(R)^(@)` `S_(NH_(2)CONH_(2))^(@)+ S_(H_(2)O)^(@)-[2xxS_(NH_(3))^(@)+ S_(CO_(2))^(@)]` ` 174.0 + 69.9 -[2xx192.3+213.7]` `354.4 JK^(-1)mol^(-1)`