What is the most electronegative element?
F
Find the derivative of sin2(x)
2sin(x)cos(x)
What variables does Antoine's equation relate?
vapor pressure and temperature
Pressure temperature & volume
How many graduate students does URI have? (±200 is acceptable)
3,300 (3100-3500 is good)
How are ionic, covalent and metallic bonds different?
e- sharing (loss/gain, shared, donated)
What type of collision does not conserve energy?
Inelastic
What is the matlab command to reduce a matrix?
rref(A)
Two 100 kg/s streams of EtOH & MeOH are combined into one product stream. Stream 1 is 60% EtOH, stream 2 is 20% EtOH. What is the MeOH composition of the exiting stream?
60% at 200 kg/s
How many engineering undergraduates does URI have? (±100 is acceptable)
1350
What 4 things do you need for a working electrochemical cell?
Cathode, anode, electrical connection, salt bridge
Solve the following ODE:
y'' + 36y = 0
y = c1sin(6x) + c2cos(6x)
What metals are in catalytic converters?
Pd, Pt, Rh (get 2 of the 3)
What is an azeotrope?
A mixture composition that cannot be separated with distillation
Name 5 mountain dew flavors
idk I'm gonna go off of memory
What are the products of the reaction between sodium phosphate and bismuth (III) chloride in water?
**Include phases :D**
Na3PO4 (aq) + BiCl3 (aq) -> 3NaCl (aq) + BiPO4 (s)
How do you combine two parallel resistors to get an equivalent resistance?
1/Rnew = 1/R1 + 1/R2
Name 2 of the dimensionless parameters in fluid mechanics and heat & mass transfer
Re, Pr, Ra, Nu, Bi, Gr
What is fugacity?
"Idealized pressure" for non-ideal gases & conditions. Using fugacity as the operating pressure makes the gas act ideal.
Name 10 NFL teams
idk I'm gonna go off of memory
What two temperatures is the modern Celsius scale based on?
Absolute zero (-273.15) and triple point of water at 1atm (0.01)
Find the derivative of x^x
x^x(1 + ln(x))
*treat x^x as e^ln(x^x) --> e^(xln(x))
Name 4 of Pauling's rules of crystal chemistry
Polyhedra are shared at corners, sometimes at edges, never at faces; Charge is conserved; # of different constituents is small; Radius ratio determines coordination number; Large charges tend not to be shared.
How can you break an azeotrope?
Congrats, there's no question. You get points.
(I ran out of ideas)