CH4(g) +2O2(g)-->CO2(g)+2H2O(g)
An increase in the concentration of O2(g) at constant temperature and pressure will result in?
1. An increase in the concentration of CH4(g)
2.An increase in the concentration of CO2(g)
3.A decrease in the concentration of O2(g)
4.A decrease in the concentration of H2O(g)