Basic Chemical Engineering Practice Test 3

1. The flow in rate of C₃H₈ and O₂ in a system are 2 mole/hr each what is the flow out rate of CO₂?

2. In a system if, Accumulation = Input – Output, where both the terms are distinct and non-zero, then the system is which of the following?

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

4. 50 Kg of a solid liquid mixture containing 20% solid and 80% water is left open in the atmosphere, after some time the water is 60%, how much water is evaporated?

5. xKMnO₄ + yFeS + zH₂SO₄ -> xMnSO₄ + wFe₂(SO₄)₃ + uK₂SO₄ + zH₂O, what is the value of x + y + z + w + u?

6. 4 moles of CH₄ and 4 moles of O₂ are reacted, then what type of reactant CH₄ is?

7. 158 grams of potassium permanganate is reacted with ferrous sulfide in the presence of hydrochloric acid, approximately how much ferric sulfate will it produce?

8. 10 Kg of oil is burnt in a container and taken off from the container if 1% of oil remains on the container wall, how much oil is taken off?

9. A reactor has feed of two streams, stream 1 has CO₂ and H₂O with mass fraction of 0.4 and 0.6 and rate 10 kg/hr, and stream 2 has CO₂ and H₂O with mass fraction 0.1 and 0.9 and rate 40 Kg/hr, what the mass fraction of CO₂ in the product stream?

10. Solution-1 at the rate F combines with solution-2 at the rate D, their combination gives the product at the rate P, what is the equation of material balance?