Question

A chemistry student needs to determine the effect of an increase in temperature on the equilibrium concentration of products and reactants for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g). Calculate the new concentration of NH3 at equilibrium when the temperature is raised from 300 K to 400 K.

Answer 1

To solve this problem, we need to use the Van't Hoff equation, which relates the change in temperature to the change in the equilibrium constant  K . The Van't Hoff equation is:ln K2/K1  = -H/R *  1/T2 - 1/T1 where K1 and K2 are the equilibrium constants at temperatures T1 and T2, respectively, H is the standard enthalpy change of the reaction, R is the gas constant  8.314 J/molK , and T1 and T2 are the initial and final temperatures in Kelvin.However, we do not have the values for K1, K2, or H. We need more information to solve this problem. If you can provide the initial equilibrium concentrations or the standard enthalpy change of the reaction, we can proceed with the calculation.