Ch.8 - Periodic Properties of the ElementsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Calculate the energy change for the reactionK(g) + Br(g) → K+(g) + Br– (g)given the following ionization energy (IE) and electron affinity (EA) valuesIE                                     EAK:   419 kJ/mol               48 kJ/molBr: 1140 kJ/mol              324 kJ/molA)     –1,092 kJ/mol                     D)      1,092 kJ/moB)     –95 kJ/mol                          E)      95 kJ/molC)      1,187 kJ/mol 

Problem

Calculate the energy change for the reaction

K(g) + Br(g) → K+(g) + Br (g)

given the following ionization energy (IE) and electron affinity (EA) values

IE                                     EA

K:   419 kJ/mol               48 kJ/mol

Br: 1140 kJ/mol              324 kJ/mol

A)     –1,092 kJ/mol                     D)      1,092 kJ/mo

B)     –95 kJ/mol                          E)      95 kJ/mol

C)      1,187 kJ/mol