Question

Nitric oxide (NO) can be removed from gas-fired power-plant emissions by reaction with methane as follows:

$$

Complete the equation relating the rates for each of the following.

Answer 1

Balanced equation:
CH4 + 4 NO → 2 N2 + CO2 + 2 H2O

Relation between rates (using stoichiometric coefficients):
- d[CH4]/dt = -(1/4) d[NO]/dt = (1/2) d[N2]/dt = d[CO2]/dt = (1/2) d[H2O]/dt

(Equivalently, define the rate r = -d[CH4]/dt = -(1/4)d[NO]/dt = (1/2)d[N2]/dt = d[CO2]/dt = (1/2)d[H2O]/dt.)