Mass Transfer Mock Test 8

1. Find the initial moisture content for the batch process if the final moisture content is 25% (dry basis) and the constant moisture content is 40%. (Includes constant and falling rate period)

2. The two liquids while mixing gets dispersed inside the mixer.

3. Find the change in moisture content from the given data
Given data:
Time for drying= 6 sec
Area * Constant rate = 8 kg per sec
Weight of wet solid = 100 kg

4. The point where A and B rich solubility curve merge is known as _________

5. Consider a solutropic system; the plait point will be at the maximum addition of? Find from the figure.

6. The substance to get mixed enters into the mixer through.

7. If the time taken for the moisture removal is obtained from the formula
Time = Ss(Xc – Xe)/ Nc * A ln ((X1-Xe)/(X2-Xe)) then the falling curve will be curves symmetrically
Where, Ss= Wet solid weight
Xc,Xe- constant & equilibrium moisture content
X1,X2 – initial and final moisture content

8. Find the pure solvent rate if the feed ( F= 100 kmol/hr) composition is 0.65 and mixture solute composition is 0.5.

9. _____________ mixing is applicable for differential contractors.

10. Find the process.