The thermal decomposition of acetaldehyde, CH3CHO CH4 + CO, is a second-order reaction. The following data were obtained at 518°C. 
Based on the data given, what is the half-life for the disappearance of acetaldehyde?
A) 1.5 105 s
B) 410 s
C) 5.4 107 s
D) 520 s
E) 305 s
Correct Answer:
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