Petroleum engineers plot the log of this quantity against “one over Fahrenheit temperature” to form a straight line on a Cox chart. Cavitation occurs in a vacuum pump (0[1])when the static head falls below this value. (0[2])In formulas, an asterisk or the superscript “sat” (“sat”) specifies this quantity, which multiplies mole fraction (0[1])x (20[1])to give the fugacity of an (0[1])ideal (20[1])solution. (20[2]0[2])Replacing K (20[1])in the van’t Hoff equation with this quantity gives the (20[1])(*) Clausius–Clapeyron (10[1])equation. This quantity is a colligative (“coh-LIGG-uh-tive”) property for mixtures of volatile (10[1]0[1])solvents according (10[2])to Raoult’s (“ROWT’S”) law. (10[1]0[1])This quantity (10[2]0[1])increases (10[1])from 3 to 101.3 (0[1])kilopascals when water is heated from room temperature (10[1]0[1])to 100 degrees (10[2]0[1])Celsius. (10[1]0[1])For 10 points, name this pressure of the gas (10[1])in equilibrium (10[1])with a liquid. (10[3]0[1])■END■ (10[5]0[4])