Please exlplain-show work 20- At 25 C- for which one of the reactions.docx

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Please exlplain/show work 20. At 25 Â°C, for which one of the reactions below does AGÂ°rxnAGÂ°f? B. N20(g) + NO2(g) ? 3 ?0(g) C. Ndg) +2 O2(g) ? N2O4 g) D. 2 Na(s) + 2 H2O?-> 2 NaOH (aq) +H2(g) E. CaO(s) +CO2(g)CaCO3(s) Solution for delta Gorxn to be delta Gof, rule 1: there must be only 1 mol of product being formed rule 2: reactant must be element in their standard state A is wrong as there are 2 mol of product being formed B is wrong as there are 3 mol of product being formed C is correct and it satisfied both rules D is wrong as there are 3 mol of product being formed E is wrong as CaO is a compound and not element Answer: C .

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