The hydrogen fuel economy depends on the reliable production of H2 gas.  One common chemical reaction to do this is called the steam methane reforming reaction.               CH4 (g)  +  2H2O(g)   <-->   CO2 (g)  +  4 H2 (g) A reaction container is filled with 0.30 M CH4 and 0.40 M H2O and they are allowed to react. When the reaction has reached equilibrium [CH4] = 0.15 M . What are the concentrations of H2O, CO2, and H2 at this point?

Phosphorus pentachloride decomposes according to the chemical equation Kc = 1.80 at 250 °C PC1, (g) PC13 (g) + Cl₂ (g) A 0.1584 mol sample of PC1, (g) is injected into an empty 2.00 L reaction vessel held at 250 °C. Calculate the concentrations of PC1, (g) and PC1₂(g) at equilibrium. [PC1,] = [PC1₂] = 0.0792 Incorrect Incorrect M M

Phosphorus pentachloride decomposes according to the chemical equation Ko PC15 (g) ⇒ PC13 (g) + Cl₂(g) A 0.3476 mol sample of PC15 (g) is injected into an empty 3.95 L reaction vessel held at 250 °C. Calculate the concentrations of PC15 (g) and PC13 (g) at equilibrium. [PCI,] = [PC13] = = 1.80 at 250 °C M M

The equilibrium constant, K, for the following reaction is 1.80×10-² at 698 K. 2HI(g) H₂(g) + I₂(g) If an equilibrium mixture of the three gases in a 19.0 L container at 698 K contains 0.230 mol of HI(g) and 0.345 mol of H₂, the equilibrium concentration of 12 is M.

2NO(g) + 2H₂(g) = N₂(g) + 2H₂O(g) The system initially contained 0.2500 M NO, 0.1300 M H2, and 0.2500 M H₂O. At equilibrium, the concentration of NO is 0.1296 M. What is the equilibrium concentration of H₂? [H₂] = [?] x 10¹ M K= [N₂] [H₂O]2 [NO]2[H₂]2 Coefficient (green) Exponent (yellow) Enter

Phosphorus pentachloride decomposes according to the chemical equation   PCl5(g)↽−−⇀PCl3(g)+Cl2(g)?c=1.80 at 250 ∘C A 0.3388 mol sample of PCl5(g) is injected into an empty 4.40 L reaction vessel held at 250 ∘C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium. [PCl5]= ____________M [PCl3]= ____________M

Steam reforming of methane ( CH, ) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. An industrial chemist studying this reaction fills a 2.0 L flask with 1.9 atm of methane gas and 2.1 atm of water vapor, and when the mixture has come to equilibrium measures the partial pressure of hydrogen gas to be 4.6 atm. Calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. Round your answer to 2 significant digits. K, = 0

6. Gaseous phosphorus pentachloride decomposes to gaseous phosphorus trichloride and chlorine at a temperature where Kc=1.00x10-3mol/L. Suppose 2.00mol of phosphorus pentachloride in a 2.00L-vessel is allowed to come to equilibrium. Calculate the equilibrium concentrations of all species. (7pts) PCIS(g) = PCI3(9)+C12 (g)

Steam reforming of methane ( CH, ) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. An industrial chemist studying this reaction fills a 5.0 L flask with 0.93 atm of methane gas and 2.7 atm of water vapor, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 0.47 atm. Calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. Round your answer to 2 significant digits. K_ = || x10

Steam reforming of methane ( CH, ) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. An industrial chemist studying this reaction fills a 1.5 L flask with 3.2 atm of methane gas and 1.1 atm of water vapor, and when the mixture has come to equilibrium measures the partial pressure of hydrogen gas to be 2.0 atm. Calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. Round your answer to 2 significant digits. K, = I