Kinetics (2) Flashcards
1
Q
chemicas that are only present DURING a reaction are called…..
A
Intermidietes
2
Q
when are concentartion and rate constant ?
A
at a fixed temperature
3
Q
what is the unit for a first order reaction ?
A
s-1
4
Q
what is the unit for a second order reaction ?
A
M-1 s-1
5
Q
what is the unit for a third order reaction ?
A
M-2s-1
6
Q
rule of thumb for non-enzematic reaction affected by temperature ?
A
for each 10C/K increase in temperature, reaction rate doubles
7
Q
What does the Arrhenius equation do ?
A
helps to predict relationship between rate constant : k and T
8
Q
what is the Arrhenium equation ?
A
k = Aexp (-Ea I RT)
* A= frequency factopr
* Ea= activation energy
* R= gas constant (8.314 JK-1 mol-1)
* exp= exponantial or anti-natural log (In)
* T= absolute temeperature /K
