Can someone tell me what a "first-order reaction" is in easy to understand terms please?
Say that we're given a chemical reaction:
And the rate of the reaction is given by:
We say that the order of the reaction with respect to is and the order with respect to is . The total order of the reaction is given by .
One thing to note that and are determined experimentally. There's no way to predict the order without actually carrying out the experiment itself.
Now for specifics. A first-order reaction means that the rate of the reaction depends only on one of the reactants with order 1, i.e.
A common form is its integrated form: where is the initial concentration of our reactant.
You went a little ahead of my course by embedding ln into chemistry but I just wanted to ask the following word problem question:
"Consider the decomposition of N2)5 in carbon tetrachloride (CCl4) at 45°C.
The reaction is first-order in N205, with the specific rate constant 6.08x10^(-4) per second. Calculate the reaction rate under these conditions.
a) [N2O5] = 0.2 mol/L"