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[WereSheep]

Ammonia is a gas for which reliable analytical methods are available to determine its concentration in other gases.

 

To measure flow in a natural gas pipeline, pure ammonia gas is injected into the pipeline at a constant rate of 72.3 kg/min for 12 mins.  Five miles downstream from the injection point, the steady state ammonia concentration is found to be  0.382 weight percent.  The gas upstream from the point of ammonia injection contains no measurable ammonia.

 

How many kilograms of natural are flowing through the pipeline per hour?

Edited by Art Montemayor, 21 October 2014 - 08:35 AM.

[Art Montemayor]

Is this your homework problem?

 

Are you sure this is a "Mechanical" Energy Balance application?  That may be the reason you may be having problems solving this.  What, specifically, is your problem in solving the assignment?   Please show your work or attempts and your basis and reasons.