180 kg/h of a liquid feed enters an extraction column with 98% paraffin oil and 2% ethyl alcohol at room temperature and pressure. Liquid absorbent is 100% water. Required recovery (extraction) of ethyl alcohol from paraffin oil is 97%. Given that paraffin oil and water are immiscible with each other and the extraction column operates in a counter current fashion. Assume isothermal and isobaric conditions and that only ethyl alcohol is absorbed. Equilibrium relation between mass fractions of ethyl alcohol in water and paraffin oil is given by Xwater = 1.7544 * Xparaffin oil (a) Find minimum amount of water required (Answer – 97.5 kg/hr) (b) If you have 1.5 times minimum water amount, how many equilibrium stages are required? (Answer ~ 6)

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Answer 1

I’m not sure..............

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Switching to first order kinetics, enzymes are immobilized in 6 mm radius (R) beads. Beads are immersed in a solution containing substrate at a concentration (CAs) of 22 gmol/m3. The observed reaction rate (rA,obs) of the heterogeneous reaction is 4.3 x 10-6 gmol/sec. The first order rate constant (k1) is 0.24 /sec. Calculate the hypothetical rate, r*As of the reaction in this system.

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Is this physics or engineering science ?

(TCO 3) Below is the frequency response of the IIR realization of an analog band-pass filter. What type of filter is this?

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Answer:

Hello the frequency response is missing attached below is the missing image

answer : Elliptic Filter

Explanation:

The filter with such frequency response that is an analog band-pass filter as well is called an Elliptic filter.

And this is because an Elliptic filter posses a constant ripple in the stop band and a unity gain is seen in the pass band

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