explain why you would expect that the Hneutzn for HBr reacting with KOH and the Hneutzn for HNO3 reacting with NaOH to be identical

The net ionic equations for both the reactions are same so they have identical ΔH neutralization

H⁺ + OH⁻ H₂O

Explanation:

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation: