Select all of the true statements below. Group of answer choices Chemical reactions shift left or right to run away from the applied stress. Equilibrium theory is concerned with the flow of energy. Equilibrium theory can answer the question: "what is the extent to which the reaction happened?" Equilibrium theory can answer the question: "how fast does the reaction happen?" The equilibrium constant is given the symbol .

Chapter 1 question 6: Ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its reaction with oxygen produces only nitrogen and water vapor, and in the liquid form it is easily transported. An industrial chemist studying this reaction fills a 50.0L tank with 4.6 mol of ammonia gas and 4.5 mol of oxygen gas, and when the mixture has come to equilibrium measures the amount of nitrogen gas to be 1.2 mol. Calculate the concentration equilibrium constant for the combustion of ammonia at the final temperature of the mixture. Round your answer to 2 significant digits.

For an endothermic reaction at equilibrium, increasing the temperature does what?

Equilibrium is reached in a chemical reaction when       A.  the reactants are completely consumed.       B.  the concentrations of all reactants and products become equal.       C.  the rates of the opposing reactions become equal.       D.  the forward and reverse reactions stop.