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1. 350 kgs per hour of halibut liver is to be extracted in a counter-current cascade with ether to recover oil. The ether which has been partially purified contains 2% oil. The fresh livers contain 20% oil and are to be extracted to a composition of 1% oil (on solvent free basis). 250 kgs of solvent is used. All are in % wt/wt. the leaching data is given in Table 1.1. a) Calculate % of oil entering with the liver recovered in the extract. b) Determine number of equilibrium stages required. [25Marks] Table 1.1: leaching data Kg oil/kg sol'n 0 0.10 0.20 0.30 0.40 0.50 0.60 0.68 Kg sol'n/kg 0.288 0.368 0.44 0.51 0.60 0.71 0.87 1.06 exhausted livers 2. A wet solid of 28% moisture is to be dried to 0.5% moisture in a tray dryer. A laboratory test shows that it requires 8 hours to reduce the moisture content of the same solid to 2%. The critical moisture content is 6% and the equilibrium moisture is 0.2%. The falling rate of drying is linear in the free moisture content. Calculate the drying time of the solid if the drying conditions similar to those in the laboratory test are maintained. All moistures are expressed as per cent of 'bone dry' mass of the solid. [15 Marks]

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A service club is going to sponsor a dinner to raise money for a charity. The club has decided to serve Italian, Mexican, Thai, Chinese, or Indian food. The members of the club were surveyed to determine their preferences. The results are shown in the following table. Rankings Mexican 2 5 1 4 3 Italian 1 4 5 2 1 Thai 3 1 4 5 2 Chinese 4 2 3 1 4 Indian 5 3 2 3 5 Number of Ballots: 37 31 23 19 13 Use the plurality with elimination method to determine the food preference of the club members. (See Example 3 in this section.) Mexican Italian Thai Chinese Indian

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A binding price floor (i) causes a surplus. (ii) causes a shortage. (iii) is set at a price above the equilibrium price. (iv) is set at a price below the equilibrium price.uld be correct if demand were price elastic.

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The ____ is the age at which a fetus might survive outside the mother's uterus if specialized medical care is available. germinal period embryonic period fetal age indicator age of viability

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\int_0^{64} \sin \sqrt{x} \, dx, \quad n = 4

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1. Evaluate each integral. Show each step using proper notation. $\int \sqrt{\tan 5x} \sec^2 5x \, dx$ $\int_0^2 \frac{x}{\sqrt{1 + 2x^2}} dx$ $\int x\sqrt{3x - 4} dx$

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The nurse is making shift assignments, which patient is MOST APPROPRIATE for an unlicensed personnel? 4 newly admitted patient with seizure disorder A patient who needs ambulation 3 days post abdominal surgery A new mother who needs education on caring for a newborn A patient who needs pain medication for backache

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Individual employment and training programs are levers most likely to be advocated by Multiple Choice O new classical economists. supply-side economists. classical economists. Keynesians. Help Save & E

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A child demonstrates that she understands the idea of object permanence and egocentrism but fails to understand the concept of conservation. In the context of the Piagetian stages, she is most likely in the ________Blank stage. Multiple Choice sensorimotor preoperational concrete operational formal operational

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1. A particle of mass 2 kg moves under the influence of a force: $F(x) = (-5x^2 + 7x)$ N If its speed at $x = 4.5$ m is $v = 20$ m/s, what is its speed at $x = -4.5$ m? Enter to 2 significant figures Speed at $x = -4.5$ m = m/s

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jennifer h.