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Mass Transfer-Data Intensity 1 Multiple Questions and Answers.
| 16. | For the flow of gases through a capillary, with increase in temperature, the permeability ______ as per Knudsen law? | ||
| A. | Increases | ||
| B. | Decreases | ||
| C. | Remain same | ||
| D. | Either A. or B.; depends on the gas | ||
| 17. | Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the _______ moisture? | ||
| A. | Free | ||
| B. | Unbound | ||
| C. | Equilibrium | ||
| D. | Bound | ||
| 19. | The relative volatility of a binary mixture at the Azeotropic composition is? | ||
| A. | 1-Jan | ||
| B. | > 1 | ||
| C. | 0 | ||
| D. | None of above | ||
| 20. | Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time) ? | ||
| A. | (De.t)1/2 | ||
| B. | (De/t)1/2 | ||
| C. | (4De/?t)1/2 | ||
| D. | (4De/t) | ||
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