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course Phy 232
8/30 2
Problem Number 5The masses of 1 mole of various gases are as follows: hydrogen about 2 grams, helium about 4 grams, nitrogen about 28 grams, oxygen about 32 grams and carbon dioxide about 44 grams. On the average how fast does a molecule of each gas move at 333 Celsius?
Ave KE per particle is KEave = 3/2 k T.
It follows that .5 m v^2 = 3/2 k T. We easily find v if we just know m.
We know how many grams per mole so we easily find the number of grams per particle.
&&&& I do not understand how we can find the number of grams per particle.&&&&"
Self-critique (if necessary):
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Self-critique rating:
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You will use Avagodro's Number with this information. You should look that up (Internet search or textbook). You don't need to understand the details of how it is determined, but you need to know the number and its meaning.*@