The Atmosphere Flashcards
1
Q
% to ppm
A
X 10^4
2
Q
Ppm to %
A
X 10^-4
3
Q
How do electrons in an atom jump to higher energy levels?
A
By absorbing electromagnetic radiation of a fixed frequency
4
Q
What kind of energy levels to microwaves alter?
A
Rotational
5
Q
What kind of energy levels does infrared alter?
A
Vibrational
6
Q
What energy does visible/uv alter?
A
Energy of the atom’s electrons
7
Q
What 3 things can uv/visible cause an atom’s electrons to do?
A
- excitation
- photodissociation
- ionisation
8
Q
Why is it vital that O3 absorbs high energy uv radiation from the sun?
A
Protects the earth’s surface from it, could otherwise cause skin cancers, eye damage, damage to crops & damage to dna
9
Q
Why is O3 in the troposphere bad?
A
Toxic & leads to breathing problems & photochemical smog
