A fermentation slurry containing Streptomyces kanamyceticus cells is filtered using a continuous rotary vacuum filter. 120 kg h^{- 1} slurry is fed to the filter; 1 kg slurry contains 60 g cell solids. To improve filtration rates, particles of diatomaceous-earth filter aid are added at a rate of 10 kg h^{- 1}. The concentration of kanamycin in the slurry is 0.05% by weight. Liquid filtrate is collected at a rate of 112 kg h^-1; the concentration of kanamycin in the filtrate is 0.045% (w/w). Filter cake containing cells and filter aid is continuously removed from the filter cloth.

 What percentage liquid is the filter cake?

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#Question id: 28105

#Section 5: Bioprocess Engineering and Process Biotechnology

At 2000 K, one chemical reaction has 〖∆𝑮〗^°  = 6.12 kJ/mol. What is Keq for this reaction at the same temperature?

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#Question id: 28106

#Section 5: Bioprocess Engineering and Process Biotechnology

In case of a chemical reaction, if 〖∆𝑮〗^°>𝟎, then Keq is

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#Question id: 28107

#Section 5: Bioprocess Engineering and Process Biotechnology

If the equilibrium constant for a chemical reaction at 20° C is 20, the standard free energy change associated with the reaction will be (R=1.98 cal/mol/K):

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#Question id: 28108

#Section 5: Bioprocess Engineering and Process Biotechnology

Consider the following reversible reaction. In a 3.00 liter container, the following  amounts are found in equilibrium at 400 oC: 0.0420 mole N₂, 0.516 mole H₂ and 0.0357 mole NH3. Evaluate K_eq.

N2(g) + 3H2(g) ↔ 2NH3(g)

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#Question id: 28109

#Section 5: Bioprocess Engineering and Process Biotechnology

If the equilibrium constant for the reaction

A + 2B ↔ C + 5/2 D

has a value of 4.0, what is the value of the equilibrium constant for the reaction

2C + 5D ↔ 2A + 4B

at the same temperature?

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#Question id: 28110

#Section 5: Bioprocess Engineering and Process Biotechnology

A certain reaction has a value of K_eq = 0.0260 at 25 °C and ΔHrxn=32.4kJ/mol. Calculate the value of Keq at 37 °C.