Study the following phase diagram of Substance X. B E D' F G temperature (K) O A O B Which is the solid-liquid coexistence curve? OC OD O E OF O G O A O B Which point marks the highest temperature and pressure at which it's possible to determine whether a sample of pure X is a liquid or a gas? OC OD O E OF OH O A O B In what region would a sample of pure X be liquid? OC OD O E OF O G OH pressure (atm)

The vapor pressure of ethanol (C2H5OH) at 19 °C is 40.0torr. A 1.00-g sample of ethanol is placed in a 2.00 L containerat 19 °C. If the container is closed and the ethanolis allowed to reach equilibrium with its vapor, how manygrams of liquid ethanol remain?

Study the following phase diagram of Substance X. -A- C -E- pressure (atm) Continue F H temperature (K) [T O Hi =)

Use the following vapor pressure data to answer the questions: Liquid Ag Ni Vapor Pressure, torr Temperature, °C 10 1540 10 2090 (1) In which liquid are the attractive forces the weakest ? (2) Which liquid would be expected to have the highest heat of vaporization?

ㅁ q, we anawer in ore senlevee. a) Idify lid, liquid, and g h) The nonnal boiling point of O P Can Oy be kept in liquid state at-100°C by applying fly high pressure? Explain your answer in one sentence

The pressure above a pure sample of solid Substance X at -146. °C is lowered. At what pressure will the sample sublime? Use the phase diagram of X below to find your answer. pressure (atm) solid 200 liquid temperature (K) 400 gas Note: your answer must be within 0.5 atm of the exact answer to be graded correct.

Diethyl ether has a AH, vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0°C. What is its vapor pressure at 82.0°C? atm

Study the following phase diagram of Substance X. A B C E- F temperature (K) A C If a sample of pure X is solid, in which region must the temperature and pressure be? G H A Which line must the temperature and pressure have crossed if a gaseous sample of X is observed to condense? H А В Which is the critical point of X? E O F G он O O OO O C ш о O O O OlO O O OO O O O pressure (atm)

4. What type of intermolecular attractions can occur for each molecule? (intermolecular forces between molecules of the same kind). H CH;NH2 H- -N -H H %23 H H H- H- C2H6 SİH2O H.