October 2020 0 97 Report
Qual a variaçao de entalpia ( > H) da reaçao de combustao do etanol ( C2 H5 OH) a 25.C e 1atm sabendo-se que C2H5OH1=66,4 kcal\ mol
8
C2H5OH1+302 > 2CO2 +3H2O1
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Atençao;adote a entalpia padrao
-CO2 = - 94,2 Kcal\ H2O1= -68,4Kcal\ mol
8
A) -459,8 kcal\ mol
B) -326,7 kcal\ mol
C) +459,8 kcal\mol
D) + 326,7 kcal\ mol
E) - 49,7 kcal \mol
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