Exam Specifications

Mathematics 15%Engineering Probability and Statistics 7%Chemistry 9%Computers 7%Ethics and Business Practices 7%Engineering Economics 8%Statics and Dynamics 10%Strength of Materials 7%Material Properties 7%Fluid Mechanics 7%Electricity and Magnetism 9%Thermodynamics 7%

BEGINNING OF CHEMISTRY

Problem 128TOPIC: Chemistry (pg 33-39)

Periodic Table

Categorizations of Elements

• Metalloids: boron (B), silicon (S), arsenic (As), germanium (Ge),antimony (Sb), tellurium (Te), and polonium (Po)

• Metals: everything to the left of the metalloids• Nonmetals: everything that is not a metal• Noble or inert gases: column on the right• Halogens: column next to noble gases

(a) What is the atomic number>(b) What is the atomic mass?(c) Are the electrons equal to neutrons? protons?

Problem 129TOPIC: Chemistry (pg 33-39)

Oxidation (Valence) StateOxidation Number (oxidation state)

• An electrical charge assigned by a set of prescribed rules.Elements have valence shells

• Noble gases: completely filled shells (stable)• Non-noble elements: achieve a more stable shell by adding/losing electrons

(a) How does sodium reach a stable state with filled shells?(b) How does oxygen reach a stable state with filled shells?(c) How does aluminum reach a stable state with filled shells?(d) How is Manganese different than (a) through (c)

Problem 130TOPIC: Chemistry (pg 33-39)

Nitrogen (N) the most notable exception, can have any valence in its row (+5 to –3, but never zero).

(a) Since nitrogen is diatomic (N2): how does it become stable?

Some valence states to remember are:• hydrogen (H) column: +1• beryllium (Be) column: +2• boron (B) column: +3• fluorine (F): –1• oxygen (O): –2

Ionic compounds are based on the unequal sharing of electronsCovalent compounds are based on the sharing of electrons to become stable

(b) How is methane (CH4) bonded?

Problem 131TOPIC: Chemistry (pg 33-39)

The valence (oxidation state) of manganese in potassium permanganate, KMnO4 is:

(b)

(a)

Problem 132TOPIC: Chemistry (pg 33-39)

(a) Calculate the total number of mols in the following mixture of gases:

H2 20 gCH4 30 gC3H6 25 g

(b) Calculate the mol fractions of the compounds in the mixture above

Problem 133TOPIC: Chemistry (pg 33-39)

(a) Calculate the total number of mols in the following mixture of gases:

H2 20 gCH4 30 gC3H6 25 g

(b) Calculate the mol fractions of the compounds in the mixture above

Problem 134TOPIC: Chemistry (pg 33-39)

Please balance the following equations:

Al + H2SO4 → Al2(SO4)3 + H2

Na2CO3 + HCl → NaCl + H2O + CO2

FeS2 + O2 → Fe2O3 + SO2

Problem 135TOPIC: Chemistry (pg 33-39)

For the following reactions, what is oxidized? What is reduced? What is the oxidizing agent? What is the reducing agent?

Problem 136TOPIC: Chemistry (pg 33-39)

Problem 137TOPIC: Chemistry (pg 33-39)

Unit of concentration:• Molarity – number of gmol/L of solution• Molality – number of gmol/1000 g of solution• Normality – number of gram-equivalent weight/L

of solution• Normal solution – gram-equivalent weight/L of solution

Problem 138TOPIC: Chemistry (pg 33-39)

Problem 139TOPIC: Chemistry (pg 33-39)

Problem 140TOPIC: Chemistry (pg 33-39)

END OF CHEMISTRY

BEGINNING OF MATERIALS SCIENCE

Problem 142TOPIC: Chemistry (pg 33-39)

Problem 142, continuedTOPIC: Chemistry (pg 33-39)

NaCl has a face-centered cubic unit cell while CsCl is body-centered cubic

Problem 141, continuedTOPIC: Chemistry (pg 33-39)

Problem 143TOPIC: Chemistry (pg 33-39)

Problem 144TOPIC: Chemistry (pg 33-39)

How about NH3, SO2, C8H18 ?

Problem 145TOPIC: Chemistry (pg 33-39)

How about Fe ?

Problem 146TOPIC: Chemistry (pg 33-39)

Where is the eutectic and what does it represent ?

Problem 147TOPIC: Chemistry (pg 33-39)

Assuming you have a liquid at composition x, what happens as the liquid is cooled down ?

Problem 148TOPIC: Chemistry (pg 33-39)

Where is the eutectic and what does it represent ?

Fe-C

pha

se d

iagr

am

Fe-C

pha

se d

iagr

am

Problem 149TOPIC: Chemistry (pg 33-39)

END OF MATERIALS SCIENCE

BEGINNING OF ELECTRICITY

Problem 150TOPIC: Electric Circuits (pg 193, ff)

Problem 151TOPIC: Electric Circuits (pg 193, ff)

Problem 152TOPIC: Electric Circuits (pg 193, ff)

Problem 153TOPIC: Electric Circuits (pg 193, ff)

Problem 154TOPIC: Electric Circuits (pg 193, ff)

Problem 155TOPIC: Electric Circuits (pg 193, ff)

Problem 156TOPIC: Electric Circuits (pg 193, ff)

Problem 157TOPIC: Electric Circuits (pg 193, ff)

Problem 158TOPIC: Electric Circuits (pg 193, ff)

Problem 159TOPIC: Electric Circuits (pg 193, ff)

What is the capacitance seen by the battery?

Problem 160TOPIC: Electric Circuits (pg 193, ff)

A 10 mF capacitor in series with another 10 mF capacitor has been connected to a potential source of 150 V. The energy stored in the capacitors in 10 time constants is most nearly

Problem 161TOPIC: Electric Circuits (pg 193, ff)

Find the inductance as seen from the battery.

Problem 162TOPIC: Electric Circuits (pg 193, ff)

Find the inductance as seen from the battery.

Problem 163TOPIC: Electric Circuits (pg 193, ff)

Find the inductance as seen from the battery.

Problem 164TOPIC: Electric Circuits (pg 193, ff)

Find the inductance as seen from the battery.

Problem 165TOPIC: Electric Circuits (pg 193, ff)

Problem 166TOPIC: Electric Circuits (pg 193, ff)

Problem 167TOPIC: Electric Circuits (pg 193, ff)

Problem 168TOPIC: Electric Circuits (pg 193, ff)

Problem 169TOPIC: Electric Circuits (pg 193, ff)

Problem 170TOPIC: Electric Circuits (pg 193, ff)

Problem 171TOPIC: Electric Circuits (pg 193, ff)

Problem 172TOPIC: Electric Circuits (pg 193, ff)

Problem 173TOPIC: Electric Circuits (pg 193, ff)

Problem 174TOPIC: Electric Circuits (pg 193, ff)

END OF ELECTRICITY