Question 70 1. A refinery has available two crude oils that have the yields shown in the following table. Because of equipment and storage limitations, production of gasoline, kerosene, and fuel oil must be limited as also shown in the table. Volume % yield Maximum allowable production rate (bbl/day) Crude #1 Crude #2 Gasoline 31 6000 Kerosene 6 9 2400 Fuel oil 24 12000 There are no plant limitations on the production of other products such as gas oils. a. The profit on processing crude #1 is $1.00 bbl and on crude #2 it is $0.70/bbl. b. Find the approximate optimum daily feed rates of the two crudes to this plant via a graphical method. 60

Problem 2: d Liquid ammonia is used as a fertilizer by spreading it on a soil. In so doing, the amount of NHS charged is dependent on both the time involved and the pounds of NH3 injected into the soil. A gardener found out that, after the liquid has been spread, there is still some ammonia left in the source tank in the form of a gas with volume of 120 ft). Problem 2: d Liquid ammonia is used as a fertilizer by spreading it on a soil. In so doing, the amount of NHS charged is dependent on both the time involved and the pounds of NH3 injected into the soil. A gardener found out that, after the liquid has been spread, there is still some ammonia left in the source tank in the form of a gas with volume of 120 ft). The weight tally which is obtained by difference, shows a net weight of 125 lb of NH3 left in the tank at 292 psig at a temperature of 125°F. (a) Calculate the specific volume of the gas assuming ideal situation. (b) Calculate the specific volume of the gas assuming non-ideal situation using the compressibility factor approach. (c) Calculate the weight (lb) ammonia based on the specific volumes in both (a) and (b), and the percent differences with the obtained net weight of ammonia. Comment on the differences.

A plant bought a calciner for P220,000 and used it for 10 years, the life span of the equipment. Assume a scrap value of P20,000 for straight line method; P22,000 for textbook declining balance method and P20,000 for the double declining balance method. What is the book value of the calciner after 6 years of use?  (a) Using Straight Line Method (b) Using Declining Balance Method (c) Using Double Declining Balance Method

A solution is tested with the four indicator solutions shown in the attached colour chart. The following results are obtained: Thymol blue turns yellow. Methyl orange turns yellow. Methyl red turns orange. • Bromothymol blue turns yellow. What is the estimated pH of the solution? Thymol blue red 1,2 - 2,8 yellow 8.0-9,6 blue Methyl orange red 3,0 - 4,6 yellow Methyl red red 4,2 - 6,3 yellow Bromothymol blue yellow 6,0 - 7,8 blue 2 3 4 10 11 12 pH A. 4.3 В. 8.0 C. 5.3 D. 2.8

A 181 ‑turn circular coil of radius 2.03 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is connected to a 16.5 Ω resistor to create a closed circuit. During a time interval of 0.135 s, the magnetic field strength decreases uniformly from 0.627 T to zero. Find the energy 𝐸 in millijoules that is dissipated in the resistor during this time interval.

solve using Buckingham-pi Theorem 8-19. The force of buoyancy F is a function of the volume +of a body and the specific weight y of the fluid. Determine how F is related to ť and y.

The table below shows the monthly cost of producing vintage model cars for collectors for quantities O, 100, 200, and 500. Complete the table by filling in the average fixed cost, average variable cost, and average total cost. Instructions: Round your answers to 2 decimal places. Average Fixed Cost (dollars) Average Variable Cost (dollars) Average Total Cost (dollars) Vintage Model Car Production Costs Total Fixed Total Variable Output Cost (dollars) Cost (dollars) 0 $1,500 $0 100 1,500 600 200 1,500 1,100 500 1,500 4,150 Total Cost (dollars) $1,500 2,100 2,600 5,650