Basic Chemical Engineering Mock Test 3

1. In a steady-state reactive system, NaCl and H₂CO₃ are supplied to the system at the rate of 200 L/min and 100 L/min respectively, what is the rate at which Na₂CO₃ is produced?

2. Solution-1 containing 10% nitric acid flowing at the rate 10 Kg/min combines with Solution-2 containing 40% nitric acid flowing at the rate 5 Kg/min, if their product contains 30% nitric acid, what is the flow rate of product?

3. Water boiling in a container is an example of which of the following?

4. Tap filling a jar with water is an example of which of the following process?

5. Solution-1 containing 20% w₁ and w₂ at the rate 10 Kg/min combines with Solution-2 containing 10% w₁, 20% w₂ and w₃ at the rate 20 Kg/min, the product formed contains and 10% w₁, 30% w₂ and 20% w₃, what is the percentage of w₂ in solution-1?

6. Feed of a reactor has 0.25 mass fraction of H₂O and 0.75 mass fraction of CO₂ with rate 4 g/hr, if the product rate is 20 g/hr what is the mass of CO₂ in the product side?

7. Solution-1 containing 30% acetic acid and 20% nitrogen at the rate F combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate D and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate N the product formed contains 20% acetic acid at the rate P, what is the percentage of nitrogen in product?

8. CH₄ at the rate 10 mole/min is reacted with O₂ at the rate 30 mole/min, what is the rate of formation of CO₂ in the product?

9. A liquid solid mixture with 20% solid and 80% liquid is input to a dryer, if the amount of evaporated water is 60% of the amount of input, what is the percentage of solid in the product?

10. 56 grams of carbon monoxide is oxidized with excess oxygen, how much carbon dioxide will it produce?