## concept

$\frac{d[R]}{dt}=-k[R]; \ln [R]=-kt + \ln [R]_{0}; t_{\frac{1}{2}}=\frac{0.693}{k}$

CaminaB_1D
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

### concept

Is there a conceptual meaning behind a second order reaction?

Reva Kakaria 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 1 time

### Re: concept

A second order reaction means that the reaction rate is proportional to either the square of the concentration of one reactant, or to the concentrations of two reactants multiplied together; so two molecules have to collide for the reaction.

mcredi
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

### Re: concept

A second order reaction is a reaction where x + y = 2. This can happen if one reactant is consumed at a rate proportional to the square of the reactant's concentration (rate = k[A]2) or both reactants are consumed linearly over time (rate = k[A][B]).