Posted by Cliff on Tuesday, November 16, 2010 at 1:25pm.
I just have a quick question for you.
Do I use Charles' Law to solve the following problem, if not, how should I approach this?
If a 5.0 sample of a gas undergoes an increase in temperature under constant pressure,what is a possible new volume?
Thanks for your help.
- Chemistry - DrBob222, Tuesday, November 16, 2010 at 1:51pm
Yes, Charles' Law, assuming 5.0 whatever it is is a volume.
- Chemistry - Cliff, Tuesday, November 16, 2010 at 2:05pm
This gas has undergone 'an increase in temperature under constant pressure'; yet a value has not beeen provided. Please define this for me.
- Chemistry - DrBob222, Tuesday, November 16, 2010 at 2:55pm
What is the 5.0? If that isn't a value, what is it? and what are the units? Or did you make up that value of 5.0 and did not add units to it?
- Chemistry - Cliff, Tuesday, November 16, 2010 at 4:04pm
I'm sorry I don't have an answer for your question..as to what units are involved. In trying to solve,I asked myself the same question. I wrote the question verbatum.
- Chemistry - Cliff, Tuesday, November 16, 2010 at 4:09pm
Incidentally the answer to that chemistry question is suppose to be 5.4L, if that's of any help
- Chemistry - DrBob222, Tuesday, November 16, 2010 at 4:41pm
The answer helps a little but not much. The question is a screw-ball one; for it gives no units for the 5.0 and it gives no initial and no final T, just the fact that T increases. I guess the only thing to do is to pick a number (any number?) that is above 5.0 L. An increase in T will mean an increase in volume; therefore, any number above 5.0 should work. But the ONLY way I know to come up with 5.4 L is to assume 5.0 is in L and T increases by by a factor of 0.08. That means IF we start with 298 K, the new T would be 321.84 K. IF we start with 400 K, the new T would be 432 K. I'm sorry I can't be more help. I think this problem has serious problems of its own.
- Chemistry - Cliff, Wednesday, November 17, 2010 at 10:17am
"I this problem has serious problems of it own" lol
That comment was great..made me laugh.
The question was taken from my chemistry text's supplementary online students resource.
I did email that question to my teacher afterwardds..she taught it was a strange question.
So, thanks..I appreciate your work.
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