Compute the standard entropy change for the following reaction:?
C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(l)
_____J/K
Answer:
Entropy change of a reaction is the difference of the entropy of products and reactants.
aA + bB --> cC + dD
ΔSrxn = [cΔS of C + dΔS of D] – [aΔS of A + bΔS of B]
it must be multiply by the stoichiometric coefficient in the balanced equation.
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