Quiz

  1. Write down the mass balance equation for unsteady non-reactive systems.

  2. Convert the composition of air from mole basis to mass basis. On mole basis, air is: 21% \(\ce{O2}\), and 79% \(\ce{N2}\). Molecular weights: \(\ce{O2}\) = 32; \(\ce{N2}\) = 28.

  3. For the production of \(\ce{NH3}\), 1 mole of \(\ce{N2}\) and 2 moles of \(\ce{H2}\) are entering the reactor. Which is the limiting reactant?