SURFACE AREA ON RATE OF REACTION

Question 1

Why does the rate of reaction increase when the surface area is larger

Answer 1

higher surface area = more particles per unit time

= increased rate of reaction

Question 2

compare the surface area to volume ratio of small blocks to large blocks
explain what this means in terms of rate of reaction

Answer 2

smaller sized blocks have a greater surface area to volume ratio than larger blocks. This means they have more particles exposed on the surface so there are more collisions per unit time this increases the rate of reaction

Question 3

name the apparatus which is more accurate than using an upside-down measuring cylinder to count the number of bubbles of gas

Answer 3

gas cylinder

Question 4

when measuring mass of gas produced what apparatus is used

Answer 4

• conical flask
• balance
• cotton wool (allows gas to escape and prevents any acid splashing out of the flask)