Questions and answers on how to convert things from one unit or system to another

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Nm3/hr --- kg/hr

Sun Apr 17, 2005 8:08 am

hi... i'll like to learn about the conversion of Nm3/hr to kg/hr
thank you. :)

Nm3/hr to kg/hr

Mon Dec 24, 2007 2:13 am

there are lot of confusion between normal & standard conditions.
STP: 0 degC & 1 atm;
25 deg C & 1 atm;
15.5 degC & 1 atm...

Again, somewhere
NTP: 0 degC & 1 atm;
20 deg C & 1 atm;
15.5 degC & 1 atm...

i am little bit confused..
but what we consider during calculation is..
STP: 15.5 degC & 1 atm;
NTP: 0 degC & 1 atm;
according to this..

At NTP 1 mole of ideal gas volume=22.4 lit=(22.4/1000) Nm3
say 1 mole of Hydrogen=2 gm of Hydrogen
(22.4/1000) Nm3 of Hydrogen = 2 gm of Hydrogen
1 Nm3 of Hydrogen=(2/1000)/(22.4/1000) kg of Hydrogen
1Nm3/hr=(M.Wt of that gas/22.4) kg/hr
thanks :)

Re: Nm3/hr --- kg/hr

Sat Jul 12, 2014 1:56 am

I want know average molecular weight of natural gas.

More info

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History of measurement