rates of reaction

topic test

HideShow resource information
  • Created by: natJrat
  • Created on: 21-09-14 19:51
how can you measure the rate of a reaction?
the rate a reactant is used up, or the rate a product is made
1 of 13
what effects the rate of a reaction?
temperature, concentration pressure of gasses, surface area of reacting solids, catalsyt
2 of 13
when can chemical reactions occur?
when particles collide with enough energy
3 of 13
what does a low rate of reaction suggest?
the reaction is slow
4 of 13
what does a fast reaction have?
a high reaction rate
5 of 13
what should be measured when working out the ROR?
the volume of gas, the mass of substance
6 of 13
formula for rate of reaction...
amount of reactant used/amount of product formed,divided by time taken
7 of 13
what happens when the temperature is increased?
the ROR speeds up
8 of 13
what happens when the concentration of a reactant is decreased?
the ROR is decreased
9 of 13
what do you do to the pressure to increase ROR?
increase it
10 of 13
soild reactants can be ........ to increase ROR
broken up
11 of 13
what does a catalyst do?
speeds up a reaction-ROR increases
12 of 13
what does activation energy mean?
the minimum amount of energy particles need to collide
13 of 13

Other cards in this set

Card 2

Front

what effects the rate of a reaction?

Back

temperature, concentration pressure of gasses, surface area of reacting solids, catalsyt

Card 3

Front

when can chemical reactions occur?

Back

Preview of the front of card 3

Card 4

Front

what does a low rate of reaction suggest?

Back

Preview of the front of card 4

Card 5

Front

what does a fast reaction have?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Rate of reaction resources »