Answer:
Explanation:
To obtain the rate constant it is necessary to determine the reaction order testing the lineality for each order using R² -The reaction order will be the R² with the R² ≈ 1-
The zero order is:
[CH₃CHO] = [CH₃CHO]₀ - kt
For order 1 is:
ln[CH₃CHO] = ln[CH₃CHO]₀ - kt
For order 2 is:
1/[CH₃CHO] = 1/[CH₃CHO]₀ - kt
The zero order graphing [CH₃CHO] vs t gives a R² = 0,7507, that is the reaction is not order zero,
The graph of ln[CH₃CHO] vs t gives a R² = 0,9251, thus reaction is not order 1.
The graph of 1/[CH₃CHO] vs t gives a R² = 1. The reaction is order 2
The lineal regression gives a formula of:
y = 0,0045x + 2,9575
Where the pendient is -k, that is k = -0,0045 M⁻¹s⁻¹
I hope it helps!
