Organize data in table and adding column to data

Questions
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1

Hi guys I would like to get a help organizing my data in table. The attached file is from my Kinetic class. My goals is to organize the data in columns and add new column. I want add 2 new columns: lnK and 1/T ( Arrhenius Equation), and plot lnk vs. 1/T. But I don’t know how to process. I could have done this easily in excel, but my goal is to get used to Mathematica. Please help me on how to do this in the easiest way.
Thank everyone!

2

One way is to transpose the matrix, Insert the new column (as a simple list), and transpose back:

mat = {{a, b}, {1, 2}};
newColumn = {x, y};
positionWhereToInsert = 2;
Insert[Transpose[mat], newColumn, positionWhereToInsert] // Transpose

I would be glad to learn about a more elegant method.

3

If one needs to add a column to a matrix as the first or the last column, here is more elegant method:

array = {{a, 1, 2}, {b, 2, 3}, {c, 3, 4}};
column = {x, y, z};

(* insert as the first column *)
Join[List /@ column, array, 2]
(* insert as the last column *)
Join[array, List /@ column, 2]

For other methods see the following MMa.SE thread and the threads referenced in it:

http://mathematica.stackexchange.com/q/44459/280