Recent content by Catstranaughts

For the test, the Mass Flow Controller was programmed to max value to fully open needle valve. There is also a V4 that is opened (that bypasses the MFC)

Thanks haruspex. This is in a lab. There is a mass flow controller in the gasline. But this leaves the volume measurement dependent upon the accuracy of the MFC and gas correction factor associated with it. Is there other information I can gather to help solve this ? Thanks Dave, I'm...

Please refer to diagram. V1 is open initially then V2 is open for 5 minutes for pressure to equalize. V1 and V2 are then shut. V3 is opened. What is Vol 2 ? P(final)*V(final) = n(final)* R*T => (Vol1 + Vol2) = n(final)*R*25C/ 0.070 Torr where n(final) = n(Vol1) + n(Vol2) If I shut V3, I...