In a chemical engineering process, water vapour (H2O) is heated to sufficiently high temperatures that a significant portion of the water dissociates, or splits apart, to form oxygen (O2) and hydrogen (H2) : H2OH2+1/2O2 If it is assumed that this is the only reaction involved, the mole fraction of H2O that dissociates can be represented by K=(x/1x)(2pt/2+x) where K= the reaction equilibrium constant and pt= the total pressure of the mixture. If pt =3.5 atm and K=0.04, determine the value of x that satisfies the equation. A) using runge kutta method by hand B) Validate your answer graphically using Excel and show excel worksheet