Predict how the total pressure varies during the gas-phase reaction    N2(g)+3 H2(g)     2 NH3(g) in a constant-

Predict how the total pressure varies during the gas-phasereaction N2 (g) + 3 H2(g) = 2 NH3 (g) in a constant-volumecontainer

For each of the following gas-phase reactions, indicate how the rate of disappearance of each reactant is related to the rate of appearance of each product:

(a) H₂O₂(g) H₂(g) + O₂(g)
(b) 2 N₂O(g) 2 N₂(g) + O₂(g)
(c) N₂(g) + 3 H₂(g) 2 NH₃(g)
(d) C₂H₅NH₂(g) C₂H₄(g) + NH₃(g)

c)