The feed to an ammonia synthesis reactor contains 25 mole% nitrogen and the balance hydrogen. the fow rate of the stream is 3000 kg/h. calculate the rate of flow of nitrogen into the reactor in kg/h. (suggestion: first calculate the average molecular weight of the mixture.)

The rate of flow of nitrogen into the reactor is 2,470.588 kg/h.

Explanation:

Mole percentage of nitrogen gas  = 25 mole%

Mole percentage of hydrogen  gas  = 75 mole%

Average molecular weight of the mixture:

Rate of flow of the stream = 3000 kg/h

Mass of stream in 1 hour = 3000 kg = 3,000,000 g

Moles of stream :

Moles of nitrogen gas in 352,941.17 moles of stream be x

x = 88,235.294 mol

Mass of 8,823,529.4 mole of nitrogen gas:

The rate of flow of nitrogen into the reactor is 2,470.588 kg/h.