how to convert mg m3 into g/s

[bendale24]

Hi Everyone, i need some help with a conversion.....

I need to convert 200 mg m-3 of Nitrogen dioxide (NO2) into g/s

The other parameters that i have are....

Discharge rate per stream (flue) 15.4 m3s–1*

Discharge temperature 140 °C

*at reference conditions 273 K, 101.3 kPa, 11% v/v oxygen dry

I would be very greatful for any help anyone could give me!

[jomifl]

Is the density of the NO2 easured at 140 C or is it at NTP. If the former then I imagine you simply multiply the flow rate by the density. If the latter then you will have to allow for the reduced density at the higher temperature. I can't see what relevance the pressure or oxygen values have as we do not know what they apply to.

[vascop]

What I don't understand is that 200 mg m-3 is a density, assuming that mg m-3 means milligrams per metre. Whereas if g/s means grams per second, then it doesn't make sense to convert a density into a flowrate. So what is it you need to know exactly?

[jomifl]

vascop, I took mg m-3 to mean milligrams per cubic metre. I think there are too many assumptions to be made with this question. I wouldn't be confident in any answer based on the information given

[vascop]

Thanks jomifi, I meant to type cubic metres. I agree it's all very confusing.