|Jan25-05, 12:21 PM||#1|
Finding Final Volume - almost got it
Ok, here is what is given:
1.00 mol O2
Ti = 300K
Vi = 5.00L
4400 j of energy transfered by heat to the system
Vf = ?
Constant Pressure = 29.4 J/mol * K
So I set the problem up using Q = n(Constant Pressure)(Tf - T-i)
Solving for Tf I find that Tf is equal to 449.7K.
Then using equation (Vf - Vi) = (nR(Tf - Ti)) / P
Vf = ((1.00mol * 8.31 J/mol*K * 149.7K) / (1.013*10^5 N/m^2)) + 5.00L
I am getting Vf = 17.28 L
Can anyone tell me what I am doing wrong? My teacher told me the answer should be 7.52, could he of possibly meant 17.52?
Any help would be appreciated!
|Jan25-05, 12:59 PM||#2|
Blog Entries: 9
1.The teacher is right.
2.The final temperature u computed is right...
3.The formula u used is wrong...
|Jan25-05, 01:28 PM||#3|
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