<p>Isn’t temperature constant though? If both are at the same temperature, only speed will vary, but Ek will be the same for both.</p>
<p>at the same temperature they should have the same KE so part 2 is true
and i thought part 1 was false…</p>
<p>Edit: nvm.</p>
<p>do you guys remember any questions near the end of the test? i had to rush that section so i want to review them</p>
<p>kjw1118</p>
<p>Yes, the oxygen has a higher mass but the hydrogen has a far greater velocity. Thus, hydrogen would both have a higher average speed and kinetic energy. FF.</p>
<p>No, it should be F F I think. H2 is faster because it has a smaller molar mass. It’s Graham’s Law. They have the same KE because it’s the same Temp. KE only varies with temperature.</p>
<p>word, my bad, misread the question</p>
<p>Rock
My reasoning may be wrong for that, but as long as the answer is FF, I am happy.</p>
<p>Can anyone clarify my answer for the evaporation in an insulated container?
I put that the temperature wouldn’t change since it’s insulated and that the AVERAGE KE of the molecules under those that evaporated would not change. Any ideas?</p>
<p>hmm for the T/F questions…</p>
<p>i think some of you mentioned that you had</p>
<p>1 CE on the left and 3 on the right column</p>
<p>but i remember having 5… 
probably 2 left and 3 right</p>
<p>does anyone remember how many CE’s they put?</p>
<p>If I’m thinking of the same question, the average kinetic energy would decrease because evaporating water absorbed a lot of energy and leaves the container.</p>
<p>I had 1 CE on the left and 3 on the right.</p>
<p>Ugh… how do you think the curve’s going to be?</p>
<p>what did u guys get for the principle energy level stuff
the first one ground state i put A
the smallest energy change i put E
the ionization energy i put C
PLEASE TELL ME U AGREEEEE</p>
<p>ilovehelp-</p>
<p>I put A,E,A.</p>
<p>yea i put the same as wang… not sure if its right though</p>
<p>I did A,E,A as well, however, i heard thationizatoin energy goes to infinity</p>
<p>kjw1118</p>
<p>What do you mean “goes to infinity”?</p>
<p>i read that the ionization energy is 13.7 eVs. was that A?</p>
<p><a href=“http://physics.ucsd.edu/was-sdphul/labs/2dl/exp5/exp51.gif[/url]”>http://physics.ucsd.edu/was-sdphul/labs/2dl/exp5/exp51.gif</a></p>
![http://physics.ucsd.edu/was-sdphul/labs/2dl/exp5/exp51.gif[/url]](http://physics.ucsd.edu/was-sdphul/labs/2dl/exp5/exp51.gif%5B/url%5D){kind=link}
<p>yo i think we got it right hahaha noice</p>
<p>Nice job md5hash and kjw1118
I’m pretty certain it is A, E, A for the chart one now.</p>