by Sukla » Mon Dec 24, 2007 2:13 am
there are lot of confusion between normal & standard conditions.
Somewhere
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
Thus..
1Nm3/hr=(M.Wt of that gas/22.4) kg/hr
thanks :)