4.3.3 Effect of Surface Area Flashcards
1
Q
How do you increase the surface area?
A
Cutting or grinding up the solid.
2
Q
What is the experiment that investigates how rate is affected by surface area?
A
The effect of surface area on rate is usually demonstrated by reacting calcium carbonate (marble) chips with hydrochloric acid. The volume of CO2 produced is measured by using a gas syringe or inverted measuring cylinder in water.
3
Q
On a graph, if the surface area increases, what would the line look like?
A
Steeper start because the rate increased. Same final volume because the total amount of reaction hasn’t changed, so eventually the reaction produces the same amount of CO2.
