Hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. CH4 (9) + H₂O(g) = 3 H₂(g) + CO(g) What is the equilibrium constant for the reaction if a mixture at equilibrium contains gases with the following concentrations? CH4 = 0.108 M, H₂O = 0.544 M, H₂ = 1.40 M, CO = 0.108 M, at 750.°C t Supporting Materials

The formation of nitrogen monoxide from its elements has an equilibrium which favors reactants: N2 (g) + 02 (g) 2 NO (g) K, = 0.0290 at 2400°C If the initial partíal pressures of both reactant gases are 0.717 atm, what will be the equilibrium partial pressure of nitrogen monoxide? (A certain simplification is valid in solving this problem). 0.112 atm (A) (B) 0.0290 atm (C) 0.688 atm (D) 0.0563 atm (E) 0.0611 atm

The equilibrium constant, Kc, for the following reaction is 57.6 at 277 K. 2CH₂Cl₂ (g) CH4 (9) + CCl4 (9) When a sufficiently large sample of CH₂Cl₂ (g) is introduced into an evacuated vessel at 277 K, the equilibrium concentration of CC14 (g) is found to be 0.383 M. Calculate the concentration of CH₂Cl₂ in the equilibrium mixture. [CH₂Cl₂] = M

An experimenter places the following concentrations of gases in a closed container: NOBI]=0.245 M, [NO] = 3.29 x 10 M, Br2] = 2.02 x 10- M These %3D gases then react: 2NOB1(g) 2NO(g) + Br2 (g) 4. At the temperature of the reaction, the equilibrium constant K, is 5.85 x 10 * Calculate the reaction quotient, Q, from the initial concentrations and determine whether the concentration of NOBR increases or decreases as the reaction approaches equilibrium. Q.= %D The concentration of NOBR