Question

Use the reaction i2(s) to i2(g), deltah = 62.4 kj/mol, deltas = 0.145 kj/(mol times k), for this question. at what temperature is the reaction at equilibrium?

Answer 1

The question relates to the calculation of equilibrium concentrations in a chemical reaction, using the provided equilibrium constant and initial conditions to solve for the final concentrations.

Step-by-step explanation:

The student is asking about chemical equilibrium, specifically, the calculation of equilibrium concentrations from a given equilibrium constant (K) and initial concentrations or pressures. The chemical reaction in question is the formation of hydrogen iodide (HI) from hydrogen (H₂) and iodine (I₂) in the gaseous state.

Using the equilibrium constant and the stoichiometry of the reaction, we can establish an equilibrium expression and solve for the unknown concentrations through the use of an ICE (Initial, Change, Equilibrium) table. The equilibrium constant (K) at a certain temperature gives us the ratio of the product concentrations to the reactant concentrations for a reaction at equilibrium. Through a series of algebraic steps, we can determine the final concentration of each substance.