What is the vapor pressure of different cryogens (e.g., liquid nitrogen, liquid helium)?

Dec 22, 2021 ... 4.4 The vapour pressure of liquid zinc as a function of temperature is given as 10g P (mm Hg). - 6,620 - 1.255 109 T + 12.34. T Calculate the ... The vapour pressure of a pure compound can be calculated from the Clausius-Clapeyron equation applying Trouton's rule. Trouton's rule says that ∆hVap = ∆hVapTb ... An extremely low vapour pressure (e.g. ca. 100 pPa at 298 K for [C4mim][PF6] Citation1 compared with 3 kPa at 298 ... Vapor pressure or equilibrium vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at ... The vapor pressure is a measure of the presure (force per unit area) exerted by a gas above a liquid in a sealed container. Liquid ring vacuum pumps are dependant on the vapor pressure of the service liquid. The vapor pressure is linked to: ▫ The temperature of the service liquid. Nov 6, 2009 ... The vapour pressure is the pressure at which a liquid and its vapour are in equilibrium at a given temperature. A liquid's vapour pressure is a vapour's equilibrium pressure above its liquid (or solid); that is, the vapour pressure resulting from a liquid (or solid) ... At 70°F (21.1°C) the cylinder contains both liquid and gas. Cylinder pressure, or the “vapor pressure” of the gas, is directly affected by ambient temperature. The vapor pressure of a liquid lowers the amount of pressure exerted on the liquid by the atmosphere. As a result, liquids with high vapor pressures have lower ...