Question

(a) Consider the combustion of ethylene, given below.

C₂H₄(g) + 3 O₂(g) ? 2 CO₂ (g) + 2 H₂O (g)

If the concentration of C₂H₄ is decreasing at the rate of 0.26 M/s, what are the rates of change in the concentrations of CO₂ and H₂O?
CO₂

(b) The rate of decrease in N₂H₄ partial pressure in a closed reaction vessel from the following reaction is 41 torr/hr.

N₂H₄ (g) + H₂ (g) ? 2 NH₃ (g)

What are the rates of change of NH₃ partial pressure and total pressure in the vessel?
NH₃