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USM / OTHER / CHE 107 / What is Viscosity?

What is Viscosity?

What is Viscosity?

Description

School: University of Southern Mississippi
Department: OTHER
Course: General Chemistry II
Professor: Johnathan broome
Term: Spring 2019
Tags: Chemistry, RateLaws, integrated rate law, half-life, solids, liquids, freezing point, boiling point, solubility, MoleFractions, phase diagrams, phasetransition, viscosity, and Intermolecular Forces
Cost: 50
Name: CHE 107, Exam 1 Study Guide
Description: This is a detailed study guide for our upcoming exam.
Uploaded: 02/24/2019
3 Pages 2 Views 7 Unlocks
Reviews


Exam 1 Study Guide


What is Viscosity?



Topics to know 

 Ch. 10 

 Sec. 1

 London Dispersion Forces (LDF)

∙ Induced dipole – induced dipole

∙ Everything is considered a LDF.

 Intermolecular Forces (IMF’s)

∙ Forces in between the molecules

♦ attractions and repulsions

∙ NOT chemical bonds

∙ IMF’s may exhibit functions of:

♦ Charge (Ex: ionic and covalent)

♦ Polarity (based on dipoles and molecular shape)

♦ Molar mass (MM)

 Sec. 2

 Viscosity

∙ Measure of a liquids resistance to flow

∙ The thicker the liquid, the higher the viscosity

 Sec. 3

 Phase transitions

∙ Solid to liquid: melting

∙ Liquid to solid: freezing

∙ Liquid to gas: vaporization

∙ Gas to liquid: condensation

∙ Solid to gas: sublimation 

∙ Gas to solid: depostion

 Sec. 4


What is Phase diagrams?



 Phase diagrams

∙ A pressure vs. temperature graph showing where the phases of a substance can  exist

 Sec. 5

 Solid states of matter Don't forget about the age old question of What is Partnerships?

∙ Metallic: conducts heat and electricity well, varying melting temps

∙ Ionic: conducts electricity as liquid only, high melting points

∙ Covalent network: very high melting points, not conductive

∙ Molecular: not conductive, low melting points

 Inverted lecture

 Body­centered cubic

∙ 2 atoms: one in the very center and 1/8 in every corner (equals to one atom  because there are 8 corners)

 Ch. 11 

 Sec. 2

 Mole fractions

∙ (Xany chemical ¿=moles of chemical subscript

total moles

 Sec. 3

 Solubility

 Inverted Lecture

 van’t Hoff Factor 

∙ the number of ions in a compound  If you want to learn more check out Thermodynamics deals with systems at equilibrium.
We also discuss several other topics like What is angiosperms?

−¿

∙ ex: NaCl has 2 because it breaks into 


What are the Solid states of matter?



 Boiling point

∙Δ Tb=i(Kb ) m

 Freezing point

∙Δ T f=i(K f ) m

+¿∧Cl¿ Na¿ We also discuss several other topics like What are the principles of oncologic surgery?

∙ In boiling and freezing points, the i is the van’t Hoff factor, the K is the constant,  and the m is molality.

 Ch. 12 

 Sec. 1

 Relative rate laws We also discuss several other topics like when was the Rise of U.S. as a global power?
Don't forget about the age old question of what are the three functions of today’s families?

∙ If A + B   C + D, where A, B, C, and D are chemicals (A and B are reactants, C  → and D are products), then −Δ[ A] 

Δt=−Δ[ B]

Δt=Δ[C]

Δ t=Δ[ D]

Δ t

 Sec. 3

 Rate laws

∙ 0th order:  rate=k [ A]0, or rate = k because anything to the zero power equals 1 ∙ 1st order:  rate=k [ A]1 

∙ 2nd order:  rate=k [ A]2 

 Sec. 4

 Half­life ( t1/ 2¿

∙ 0th order:  t1/ 2=[A0]

2k

∙ 1st order:  t1/ 2=0.693

k

∙ 2nd order:  t1/ 2=1

k [ A]0 

Even though some sections are not on here, still study those sections AND  your inverted lectures. I made this study guide based off of the practice exam.  I will upload all of Chapter 12 notes BEFORE the exam. Good luck all!

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