Chemical Bonding, Properties and Structure - Sizes of Particles and their Properties Flashcards
1
Q
what size are nanoparticles
A
1-100 nm in size
2
Q
how big are nanoparticles
A
smaller than fine particles
3
Q
how big are Coarse particles (PM10)
A
they have diameters between 1x10-5m and 2.5x10-6m
4
Q
how are coarse particles often called
A
dust
5
Q
as the size of cube decreases by a factor of 10 how much much does the surface area to volume ratio change
A
the surface area to volume ratio increases by a factor of 10
6
Q
why may nanoparticles properties differ from those for the same materials in bulk
A
because of their high surface area to volume ratio
