美 英 un.水的蒸汽压 英汉 un. 1. 水的蒸汽压
The meaning of VAPOR PRESSURE is the pressure exerted by a vapor that is in equilibrium with its solid or liquid form —called also vapor tension.
The vapor pressure of water at blood temperature is 47.0 torr. What is the partial pressure of dry air in our lungs when the total pressure is 745 torr? Express your answer in torr. A substance has a vapor pressure of 50 torr at 55.1...
Vapor Pressure of WaterELSEVIERFundamentals of Chemistry Laboratory Studies
·mol-1. Calculate (1)the vapor pressure of water at 95℃; (2) the boiling point of water with .相关知识点: 试题来源: 解析 解:由题意可知P1=,T1=373K,T2=95+273=368K,△vapHm= KJ·mol1、 (1) = 即= P2 = (KPa) (2) 同理 = T = (K)反馈...
The vapor pressure of pure water at 25 °C is 23.8 torr. What is the vapor pressure of water above a solution prepared by dissolving 18.0 g of glucose (a nonelectrolyte, MW = 180.0 g/mol) in 95.0 g of water?A 24.3B 23.4C 0.451D 0.443E 23.8 相关知识点: 试题来源: 解析 B ...
Which of these has the highest vapor pressure in a sealed container at a temperature cool enough to produce a liquid? (a) CH_3CH_2OH (b) NCl_3 (c) H_2 (d) N_2 (e) CH_3OH. Which is denser at the same temperature and pressure: dry air or air saturated with ...
Vapor pressure formulation for water in range 0 to 100°C. A Revision Wexler, A. Vapor Pressure Formulation for Water in Range 0 to 100 °C. A Revision. J. Res. Natl. Bur. Stand. 1976, 80A, 775-785... A Wexler - 《Journal of Research of the National Institute of Standards & Tec...
The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of water at 25 °C above a solution prepared by dissolving 35 g of urea (a non-volatile, non-electrolyte, MW = 60.0 g/mol) in 75 g of water.
For example, chromium, which has a vapor pressure of 10−2 Torr 600°C below its melting point, is generally vaporized by sublimation. Carbon cannot be melted except under high hydrostatic pressure. Materials such as aluminum, tin, gallium, and lead have very low vapor pressures at ...