Topic 2 Nanopartickes

Question 1

What are particles but into categories based on

Answer 1

Their diameter

Question 2

What are coarse particles diameters

Answer 2

2500 nm - 10000nm

Question 3

What are fine particles diameters

Answer 3

100nm - 2500nm

Question 4

What are nano particles diameters

Answer 4

1nm - 100nm
These particles only contain a few hundred atoms

Question 5

What area of science investigated the use and properties of nano particles

Answer 5

Nanoscience

Question 6

What ratio do nano particles have

Answer 6

Large surface are to volume ratio

Question 7

Why is surface area to volume ratio important

Answer 7

Effects the way that the particle behaves

Question 8

Surface area to volume ratio equation

Answer 8

Surface area to volume ratio = surface are / volume

Question 9

What happens to the surface area as a particle decreases in size

Answer 9

The surface area increases in relation to the volume
Which causes the surface area to volume ratio to increase

Question 10

One advantage of nanoParticles

Answer 10

Need less of a material that’s made up of nano particles to work as an effective catalyst compared to the material of a normal size particle