One method to determine the flow rate of a turbulently flowing stream is to inject a small, metered amount of some easily dispersed fluid and then to measure the concentration of this fluid in a sample of the mixed stream withdrawn a suitable distance downstream. in pharmaceutical plants, there are often many inert gas streams (i. e., streams that contain mostly nonreacting gases). in a particular plant, there is a process stream that is composed of 95mol% n2(inert) and 5 mol% o2. to determine the flow rate of this process stream, o2 is injected at a flow rate of 16.3 mol/hr. a downstream sample analyzes the o2 content at 10 mol%. you can assume that no reactions occur in the pipe and that the flows are operating at a steady-state. a) how many balanced equations can you write? how many of these are linearly independent? b) calculate the flow rate of the process stream containing 95 mol% n2 and 5 mol% o2.