Ch.7 - Quantum MechanicsWorksheetSee 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: Consider an element that reaches its first excited state by absorption of 379.0 nm light.a) Determine the energy difference (kJ/mol) between the ground state and the first excited state.b) If the degeneracies of the two states for the element are g*/go = 1, determine N*/N_0 at 2090 Kc) By what percentage does N*/N_0 change if the temperature is raised by 20 K?d) What is N*/N_0 at 5970 K?

Problem

Consider an element that reaches its first excited state by absorption of 379.0 nm light.

a) Determine the energy difference (kJ/mol) between the ground state and the first excited state.

b) If the degeneracies of the two states for the element are g*/go = 1, determine N*/N_0 at 2090 K

c) By what percentage does N*/N_0 change if the temperature is raised by 20 K?

d) What is N*/N_0 at 5970 K?