WebWe have to use double the hydration enthalpy of the chloride ion because we are hydrating 2 moles of chloride ions. Make sure you understand exactly how the cycle works. So . . . ΔH sol = +2258 - 1650 + 2 (-364) ΔH sol = -120 kJ mol -1. Whether an enthalpy of solution turns out to be negative or positive depends on the relative sizes of the ... WebNov 24, 2015 · In this example, we calculate the lattice energy of lithium oxide (Li2O) using the Born-Haber cycle and Hess's Law.

5.2: Lattice Energy- The Born-Haber cycle - Chemistry LibreTexts

WebJun 7, 2024 · where r o is expressed in Å. Now we can calculate the lattice energy for NaCl using r o = 2.814 Å, as: (9.4.2) E L = − ( 1389.3) 1.7476 2.814 ( 1 − .345 2.814) = − … WebScience Chemistry The standard formation enthalpy of KCl is -571 kJmol-1. Plot the Born-Haber cycle and calculate the electron affinity of chlorine with the help of the data below. ΔH°a (K) = 89 kJmol-1 BE (Cl-Cl) = 244 kJmol-1 IE (K) = 425 kJmol-1ΔHL (KCl) = 719 kJmol-1. The standard formation enthalpy of KCl is -571 kJmol-1. honeywell hvac thermostat sensor

Solved Problem 3. KNO3, an ionic solid, dissolves readily in - Chegg

WebCerritos College - Enroll today for fall classes! WebOct 12, 2024 · Therefore, ∆H = 12100.3 kJ – 1537.5 kJ = 10562.8 kJ for this reaction. Since this energy corresponds to the ionization of two moles of … WebApr 10, 2024 · The Born-Haber equation is used to find lattice energy: Lattice enthalpy= Heat of formation- Heat of sublimation- (1/2 * Dissociation energy) - (sum of Ionization … honeywell hw2000i generator parts