Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
6 Cards in this Set
- Front
- Back
|
The rate of a reaction: – Definition? |
The change in the concentration of a substance per unit time. |
|
|
Rate can be affected by four things: |
• Temperature. • Concentration of reactants. • Adding a catalyst. • System pressure. |
|
|
The rate equation is: – Each symbol? |
r = k[A]^x[B]^y. r = rate of the reaction (mol dm^-3 s^-1). k = the constant of proportionality in the rate equation. [A] = The concentration of A. ^x = The order of reaction of the reactant. |
|
|
The rate constant, k: 1) Is affected by? 2) Comment on the value? |
1) Temperature & the addition of a catalyst. 2) The larger K is, the faster the rate of reaction is. |
|
|
The order of a reactant: 1) Shown as? 2) It represents? |
1) The power of the reactant in the rate equation. 2) The affect the concentration of that reactant has on the rate equation. |
|
|
The overall order of a reaction: |
Is the sum of all the individual orders of each reactant in the rate equation. |
