## Reaction speed

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

Kellina Tran 2I
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am

### Reaction speed

I learned in one of the review sessions that for a first-order reaction, as k increases, the reaction speeds up. Is this true and does it apply to other reactions as well? I’m

Isita Tripathi 2E
Posts: 52
Joined: Sat Jul 22, 2017 3:00 am
Been upvoted: 1 time

### Re: Reaction speed

Yes because rate = k[A]
all other factors being equal, a higher rate constant means a higher speed because rate = mol/L/s
this applies to all of the other rate laws too!