Calculate the value of S sys for thefollowing reaction, using the information in

Question

Calculate the value of Ssys for thefollowing reaction, using the information in the table below: 2Fe(s) + 3/2O2(g) + 3H2O(l) ->2Fe(OH)3(s) Substance                                                                   S(J/mol K) Fe(s) 27 Fe(OH)3 107 O2(g) 205 H2O (l) 70
Thanks! Calculate the value of Ssys for thefollowing reaction, using the information in the table below: 2Fe(s) + 3/2O2(g) + 3H2O(l) ->2Fe(OH)3(s) Substance                                                                   S(J/mol K) Fe(s) 27 Fe(OH)3 107 O2(g) 205 H2O (l) 70 Fe(s) 27 Fe(OH)3 107 O2(g) 205 H2O (l) 70
Thanks! Fe(s) 27 Fe(OH)3 107 O2(g) 205 H2O (l) 70

Explanation / Answer

2Fe(s) + 3/2 O2(g) + 3H2O(l) ->2Fe(OH)3(s)
S = S oproducts - Soreactants       = ( 2 * 107 ) - [ (2 * 27) +(3/2) * 205 + 3* 70 ]       = 214 - 571.5       = - 357.5 J / molK       = ( 2 * 107 ) - [ (2 * 27) +(3/2) * 205 + 3* 70 ]       = 214 - 571.5       = - 357.5 J / molK

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