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s3a
06-12-2009, 05:47 PM
Question:
http://img41.imageshack.us/img41/7845/questionoih.jpg

Answer: D
werehk
06-20-2009, 02:18 AM
It looks like a physics question.
You should use the conservation of mass for this question.

P1V1/RT1 + P2V2/RT2 = P3V3/RT3
Total number of moles before and after should be the same

1 X 75kPa + 0 = (2+1)P3
P3 is the answer D