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- Question
A bypass stream in a chemical process is useful, because it
Options- A. facilitates better control of the process.
- B. improves the conversion.
- C. increases the yield of products.
- D. none of these.
- Correct Answer
- facilitates better control of the process.
- 1. Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is
Options- A. 80.1°C.
- B. less than 80.1°C.
- C. 100°C.
- D. greater than 80.1°C but less than 100°C. Discuss
- 2. 1 torr is equal to __________ mm Hg column.
Options- A. 1
- B. 0.1
- C. 10
- D. 1000 Discuss
- 3. The latent heat of vaporisation
Options- A. decreases with increased temperature.
- B. decreases as pressure increases
- C. becomes zero at the critical point.
- D. all (a), (b) & (c). Discuss
- 4. The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the
Options- A. phase rule
- B. experimental data
- C. emperical equations
- D. theoretical equations Discuss
- 5. The value of gas constant 'R' is __________ kcal/kg.mole.°C.
Options- A. 2.79
- B. 1.987
- C. 3.99
- D. none of these Discuss
- 6. Validity of the relationship, inputs = outputs, holds good for the system at steady state
Options- A. with chemical reaction.
- B. without chemical reaction.
- C. without chemical reaction & losses.
- D. none of these. Discuss
- 7. In physical adsorption, as compared to chemisorption, the
Options- A. quantity adsorbed per unit mass is higher.
- B. rate of adsorption is controlled by the resistance to surface reaction.
- C. activation energy is very high.
- D. heat of adsorption is very large. Discuss
- 8. Kinetic theory of gases stipulates that, the
Options- A. energy is lost during molecular collisions.
- B. molecules possess appreciable volume.
- C. absolute temperature is a measure of the kinetic energy of molecules.
- D. none of these. Discuss
- 9. For an ideal solution, the total vapor pressure varies __________ with the composition(expressed as mole fraction).
Options- A. inversely
- B. exponentially
- C. linearly
- D. negligibly Discuss
- 10. The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation
Options- A. increases with pressure rise.
- B. decreases with increasing pressure.
- C. becomes zero at the critical point.
- D. both (b) & (c). Discuss
Stoichiometry problems
Search Results
Correct Answer: greater than 80.1°C but less than 100°C.
Correct Answer: 1
Correct Answer: all (a), (b) & (c).
Correct Answer: phase rule
Correct Answer: none of these
Correct Answer: without chemical reaction & losses.
Correct Answer: quantity adsorbed per unit mass is higher.
Correct Answer: absolute temperature is a measure of the kinetic energy of molecules.
Correct Answer: linearly
Correct Answer: both (b) & (c).
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