試題詳解

8. The decomposition of ethanol (C₂H₅OH) on an alumina (Al₂O₃) surface, C₂H₅OH(g) → C₂H₄(g) + H₂O(g), was studied at 600 K. Concentration versus time data were collected for this reaction, and the plot of [A] versus time resulted in a straight line with a slope of -4.00 × mol/L*s. If the initial concentration of ethanol was 1.25 × M, the time required to decompose all ethanol was .
(A)5.22 min
(B)313 min
(C)156 min
(D) 31.3 min
(E)0.26 min