## reaction rate and rate constant

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

Cecilia Tsai 3C
Posts: 16
Joined: Fri Sep 25, 2015 3:00 am

### reaction rate and rate constant

Hi guys,
what's the difference between reaction rate and rate constant, if any?

hpage204
Posts: 19
Joined: Fri Sep 25, 2015 3:00 am

### Re: reaction rate and rate constant

The reaction rate is the rate at which a product is produced or a reactant is consumed. The rate constant is the calculated value, K, that is used to calculate the reaction rate. K varies for each reaction and must be calculated to determine a reaction's rate law. Also, the units for K vary depending on what order the reaction is.