Question

Which of the following are TRUE statements regarding evaporation, boiling, and vapor pressure? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: The standard boiling point occurs when the vapor pressure of a compound equals 1 bar The rate of evaporation at temperatures below the boiling point is dependent on surface area The vapor pressure at dynamic equilibrium in a closer container does not depend on the amount of liquid, as long as some liquid is always present As a liquid is boiling, its temperature will not change The vapor pressure at dynamic equilibrium in a closed container depends on the surface area of the liquid The normal boiling point occurs when the vapor pressure of a compound equals 1 bar It is impossible for a liquid to evaporate below its boiling point Check

Answer 1

True statements are 0 Standard soiling point occ a compound equal and are noiling polot becure when Vapour Puise ob mpound equoll I have Role of evaponca tion at temp.boloo boiling point 19. dependent on 8usface Area, Vapour Pressive at equilbetom doonot depend upon amount of liquid, the only factors that affects 18 Temperature - As liquid is boiling, Temp. will not change until all &'quid boils. So, fost four are correct, the last there are incorect 1 5 © 2. correct statements are © Boiling point of any o6 above alcohols should higher than Non-polar hydrocarbon of similar M.W. because of H-boudum Molecule with strong intermoleculose force HOCHCHą ath the confectly because as length of hydrocarbon Increase ollsperson forces increased, so mou temp. require to break these forces. Dominant effect behind this trend in boiling point is strength of dispusion force, because H-bonding & Dipole-Dipole interactions will remain relatively same throughout series ② other statements are Wrong

" 83 0 Cq Hao iq most polarisable, since size a - Polarisability Calzo 18 biggest size among given 4. 2 molecule with strong intermolecular force is Catho. This statement is wrong Kecause strongest covalut Cond in cibove molecule üs C-H, - wrong because CHy is & mallest, but polarisabity depends on sige.. o correct. Dominant effect for this tend is strength of dispersion Force not Dipole Dipole. so ② 18 Woeng.
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