What is the value for #DeltaS^o"_(reaction)# for the following reaction, given the standard entropy values? #Fe_2O_3(s) + 3H_2(g) -> 2Fe(s) + 3H_O(g)#

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1 Answer
anor277
Jun 28, 2017

#DeltaS^@=+138*J*K^-1*mol^-1#

Explanation:

For........

#Fe_2O_3(s) + 3H_2(g) rarr 2Fe(s) + 3H_2O(g)#

#DeltaS^@""_"rxn"=S^@("products")-S^@("reactants")#

#{3xx189+2xx27-90-3xx131}*J*K*mol^-1#

#=+138*J*K^-1*mol^-1#

Has entropy increased or decreased?

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