Two gases in a mixture pass through a filter at rates proportional to the gases' rms speeds. (a) find the ratio of speeds for the two isotopes of chlorine, 35cl and 37cl, as they pass through the air. (b) which isotope moves faster?

1.03 ,35CL

The rms speed is given by formula:

RMS speed is inversely proportional to the molecular mass. To find ratio of rms speed we take the square root of ratio of molecular masses as:

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.