45. Solution to Chemistry Problem

5. There is a mixture of gaseous substances A and B that can enter into a chemical reaction to form a reaction product C, according to the stoichiometric equation 0.5A B= 2C. At the initial moment of time, there is no reaction product in the system, and the initial substances are taken in stoichiometric quantities. After equilibrium is established, the equilibrium mixture contains a number of moles of product C equal to 0.5, and the total pressure is 2 atm. Find the equilibrium constant of this reaction on the p scale.