rates of reaction Flashcards
(8 cards)
1
Q
definition of rate of reaction
A
how fast the reactions are changed into products
2
Q
equation
A
quantity of product formed/time
quantity of reactant used/time
3
Q
quantity of reactant or product
A
measured by the mass in
grams or by a volume in cm3 or quantity in moles
4
Q
steeper the line on a graph meaning
A
the faster the rate of reaction
5
Q
shallower the line on a graph meaning
A
slower rate of reaction
6
Q
what happens to the line on a graph over time and why?
A
becomes less steep as reactants are used up so there are fewer reactant molecules available to react
7
Q
3 units
A
- g/s
- mol/s
- cm3/s
8
Q
what does a flat line mean and what is it called?
A
the reaction has stopped, plateau
