Answer to Question #297135 in General Chemistry for Barbara Cavalcanti

Question

Q9: Calculate the standard free energy change for the combustion of methane at 250^oC. Again, assume that all reactants and products are gases. 3 SIG FIGURES.

Q10 PART A: Calculate the free energy change for the combustion of methane at 250^oC. Assume that all reactants and products are gases and that the partial pressures of the various gases of interest are: methane = 0.56 atm, oxygen = 0.45 atm, carbon dioxide = 2.10 atm, water = 3.40 atm.

PART B: What is the value of the equilibrium constant for the reaction described in Question 10? Provide an answer correct to 2 significant figures.

PART C: Based on your calculations in previous problems, at what temperature will the combustion of methane be at equilibrium? Provide an answer correct to 2 significant figures

Answer 1

−819 kJ/mol.