General, organic, and biological chemistry chapter 7 Exam Questions with Verified Solutions Latest
Update 2024-2025 (Already Passed)
Compressibility - Answers volume change with change in pressure
Thermal expansion - Answers volume change with Temperature change
Heat = - Answers energy
lower temperature = - Answers energy taken away
Kinetic Molecular Theory - Answers Particles are in motion
1. Matter is made up of tiny particles (ions, atoms, molecules)
2. These particles are in motion; they have Kinetic energy which is the energy of motion (will move
faster is heat is cranked up)
3. These particles interact with one another through a series of attractions and repulsions therefore they
have potential energy.
4. Kinetic energy increases with temp (motion/velocity increases with temp).
5. Particles undergo elastic collisions but KE remains constant
kinetic energy - Answers energy that matter posses because of the particle motion (movement)
electrostatic interaction - Answers attraction of repulsion between charged particles
potential energy - Answers stored energy that matter posses because of condition composition or
position
kinetic energy is a - Answers disruptive force (instability) Ek=¹/₂ mv²
Potential energy is a - Answers cohesive force (stability)
Solids - Answers -Potential energy dominates
-particles are close together and vibrate about fixed sites
-particles are drawn close together
-definite shape and volume
Density in solids is - Answers HIGH
Compressibility in solids is - Answers LOW
Thermal expansion in solids is - Answers LOW
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