Ch. 17 - Chemical ThermodynamicsWorksheetSee 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:
Vibrational and rotational motions in a water molecule.
Describe another possible rotational motion for this molecule.

Solution: Vibrational and rotational motions in a water molecule.Describe another possible rotational motion for this molecule.

Problem

A ball-and-stick model shows a water molecule as an upside down V with the O at the point and H at the end of each arm. During vibrations, the bonds shorten (the Hs move toward O); the angle between the bonds increases or decreases; or one bond lengthens and one bond shortens (one H moves closer to O while the other moves further away). During rotation, the molecule rotates or spins around a central axis, but the OH bond lengths and angles remain the same.
Vibrational and rotational motions in a water molecule.

Describe another possible rotational motion for this molecule.