YOu should use the Graham's Law of Diffusion
R1/ R2 = √(M2/ M1)
Helium is R1, air is R2.
I'm not sure if your professor gives density or molar mass for this problem? You need M2 and M1 to solve for the rates of diffusion.
Answer:
D. 5
Explanation:
The coefficient will almost always be the whole number in front of the variable.
example
5(x)= 7
The coefficient would be 5.
Wait what huh I am confused huh..
Answer:
electromagnetic waves
Explanation:
Radiation is the transfer of heat energy through space. Most of them are sent through electromagnetic waves.
Alright, so a few seem almost self-explanatory.
"Energy from moving air" -> wind
"Energy in waves from the sun" -> solar.
But I digress.
The list goes (in order of the descriptions):
9 (Black rock...)
7 (Heat inside the Earth...)
8 (Flowing water...)
3 (Wood, waste, and garbage...)
2 (Moving air...)
4 (Splitting atoms...)
5 (Portable fossil fuel...)
1 (Used by cars...) petroleum is gasoline when refined
10 (Moved by pipeline...) This is true of petroleum too, but we don't burn natural gas in cars.
6 (Waves from the sun...)