C4H10 ↔ C2H4 + C2H6 at 700K

For the products of the reaction, compute the change in enthalpy from 298K to 700K

In Athens, GA, which is ≈ 600 ft above sea level, the average barometric pressure is 29.8 inches of mercury. Choose all of the places from this list that would have a barometric pressure lower than the average barometric pressure in Athens, GA.

The choices are: A. A hot¸sunny day on the beach in Daytona¸Florida,B.In Death Valley on a clear¸sunny day,C.In the eye of a hurricane,D.n the center of a tornado, E. Inside the face mask of a scuba diver 100 feet below the Atlantic Ocean's surface

definition and purpose of the term 'soluble reaction phosphorus "?what is its purpose? How to get it?

Comprehensive thermochemical problem: Consider an electrochemical cell with the following half- cells: Pb2+(aq)(0.01 M)/Pb(s) and Sn2+(aq)(2M)/Sn(s) at 25 °C.

a. Find the potential of the cell.

b.Determine the oxidizing agent and reducing agent.

c. Calculate the standard free energy change for the reaction.
d. Find the free energy change for the cell under the current conditions.
e. Determine the equilibrium concentrations of the solutions.
f. Use ΔH°f data to determine ΔH°rxn. ΔH°f (Sn2+ (aq)) = -8.8 kJ/mol ΔH°f (Pb2+ (aq)) = 1.6 kJ/mol

g. Calculate K at 50 °C.

h. Determine the equilibrium concentrations at 50 °C.
i. Calculate the standard change in molar entropy for the reaction from values you determined in the previous problems.

A haze droplet is activated to form a cloud droplet when the ambient saturation ratio exceeds the critical value S* and the droplet radius exceeds r*. At this point the original condensation nucelous may be assumed to be completely dissolved in the droplet. Prove that, for a given hygroscopic material and a fixed temperature, the concentration of the solution when r=r* is stronger for small condensation nuclei than for large ones. Evaluate the concentration, in units of mass of salt per unit mass of water, for sodium chloride nuclei ranging from 10^-19 to 10^-14g.

Consider a mixture of 30% n-butane, 35% n-hexane, 35% n-heptane. If the pressure is 202 kPa, calculate the bubble point temperature in ?C and the unknown mole fractions. Specify whether the unknown mole fractions are vapor or liquid. .

The parallel first-order reactions A → B,A → C have activation energies of 8 and 10 kcal/mole, respectively. In a 1 liter batch reactor at 100°C the selectivity to B is 50% and the conversion is 50% in a reaction time of 10 min with CAo = 1 mole/liter. The solvent is water and the reactor can be pressurized as needed to maintain liquids at any temperature.

(a) What temperature and reactor volume are required to produce 90% selectivity to B at 90% conversion in a CSTR using a feed of 2 molar A at a flow rate of 10 liters/min?

(b) What temperature and reactor volume are required to produce 90% selectivity to B at 90% conversion in a PFTR using a feed of 2 molar A at a flow rate of 10 liters/min?

1. When is it desireable to join two metals having like coefficients of linear expansion?

2. When is it desireable to join two metals having unlike coefficients of linear expansion?

please be clear with your answers.

What are the prime responsibilities of patrol pilots?

An anasthesiologist is preparing to anesthetize a patient, who is undergoing surgery to remove her gallbladder. The anasthesia is accomplished with the administration of three drugs, primarily Midazolam (a non-opiod anesthetic), Fentanyl (an opiod analgesic), and gallamine (a long-acting muscle relaxant). Initially, each drug is contained seperate solutions in saline. The concentrations of each solution are 270 ng/mL midazolam, 3 ng/mL of fentanyl, and 42 mg/mL of gallamine. The three solutions are sent through a mixerbefore being delivered to the patient. Help the anasthesiologist plan the dosing rates if the mixed solution needs to be infused at 0.1 mL/min with 0.25 ng/mL of midazolam and 0.02 ng/mL of fentanyl.

A. Write a mass conservation equation for each component

B. Determine the mass flow rate of each drug solution into the mixer

C. Determine the weight fractions of gallamine and saline in the infusion stream

MUST USE MATLAB AND EXPLAIN STEPS. PLEASE>

A treatment plant being designed for cynusoidal city requires an equalization basin to even outflow and BOD variations.The average daily flow is 0.400m^3/s.The following flows and BOD5 have been found to be typical of the average variation over a day.What volume equalization basin is required to provide for a uniform outflow equal to the average daily flow?Assume the flows are hourly averages and that an addition of 25% to the estimated volume will be provided to account for contingencies.

Time Flow,m^3/s BOD5,Mg/L Time Flow ,m^3/s BOD5 mg/L

0000 0.340 123 1200 0.508 268

0100 0.254 118 1300 0.526 282

0200 0.160 95 1400 0.530 280

0300 0.132 80 1500 0.552 268

0400 0.132 85 1600 0.570 250

0500 0.140 95 1700 0.596 205

0600 0.160 100 1800 0.604 168

0700 0.254 118 1900 0.570 140

0800 0.360 136 2000 0.552 130

0900 0.446 170 2100 0.474 146

1000 0.474 220 2200 0.412 158

1100 0.482 250 2300 0.372 154

Describe in detail, the most commonly used industrial pieces of equipment which are used for dust control purposes. Provide images with your answer

Give three methods for controlling the exotherm in foaming/casting. Explain how they work.

Importance of basis: A liquid salt solution contains 5%(by mass)NaCl,7%(by mass)MgCl2)3% by mass)KCl and 85%(by mass)water(H2O). What are the average molecular weight of the solution(salt plus water). What is the average molecular weight of the water free of solution( that is , the average molecular weight of the NaCL,MgCL2, and KCl components of the solution)? Finally, if the specific gravity of the solution (salt and water) is 1.14, what are the concentrations of each of the salts(NaCl,MgCl2,KCl) in g/L

1. Obtain the equilibrium mole fractions (liquid and vapor) of a mixture of water, methanol and ethanol at 100 kPa and 70°C. You can assume the mixture is ideal.
2. Create one plot where the equilibrium mole fraction of benzene in the vapor phase is plotted against the equilibrium mole fraction of benzene in the liquid phase for three different pressures (0.2 bar, 0.6 bar and 1 bar). Comment on the effect of pressure on the relative volatility