The vapour pressure of a solvent in a solution is lower than that of pure solvent, at the same temperature. A higher temperature is needed to raise the vapour pressure up to the atmospheric pressure, when boiling begins. However, increase is small, like 0.1molkg−1 aqueous sucrose solutio...
When 25g of a non-volatile solute is dissolved in 100g of water, the vapour pressure is lowered by 0.225 mm. If the vapour pressure of water at25∘Cis 17.5 mm, what is the molecular mass of solute ? View Solution Free Ncert Solutions English Medium ...
The difference between the vapour pressure of solvent above swollen crosslinked polyurethanes and that above linear polyurethane solutions has been determined experimentally. Comparison of the data over a range of volume fractions of solvent has enabled an estimate to be made of the factor B/A, the...
Raoult’s Law relates the vapour pressure of the solvent above the solution to its mole fraction in the solution. Which of the following is an accurate statement?A.Raoult’s Law applies exactly to all solutions.B.Raoult’s Law works best when applied to
Answer to: In general, the vapor pressure of a substance increases as ___ increases. a. surface tension b. molecular weight c. hydrogen bonding d...
vapour pressure- the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form) vapor pressure force per unit area,pressure,pressure level- the force applied to a unit area of surface; measured in pascals (SI...
Aging and history in glassy polymer films are investigated in the frame of solvent-induced glass transition. By decreasing the pressure of a solvent vapour... F Doumenc,B Guerrier,C Allain - 《Journal of Chemical & Engineering Data》 被引量: 11发表: 2005年 加载更多来源...
The vapour pressure of cyclohexane has been measured from 451 K to the critical temperature, and the critical temperature, T 68 c = (553.64 ± 0.03) K, and critical pressure, p c = (4075 ± 2) kPa, have been obtained. The results are compared with those of previous workers both within...
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vaporisation- the process of becoming a vapor evaporation,vapor,vaporization,vapour boiling- the application of heat to change something from a liquid to a gas clouding,clouding up- the process whereby water particles become visible in the sky ...