Suppose that two liquid substances have the same molecular mass, but one is volatile and the other is nonvolatile. What differences in the molecular structures of the two substances could account for the differences in volatility? Select all that apply. Ostrength in their intramolecular attractions Opolarity of the substances O strength in their intermolecular attractions O viscosity of the substances

Given the following information, place the following substances in order of decreasing vapor pressure by writing the substance letters on the lines provided. Substance: A B C Boiling Point: - 5.1ºC 151ºC 62ºC

Which property of a liquid increases with increases temperature? vapor pressure surface tension O viscosity

Identify two common observations indicating some solids, such as dry ice and mothballs, have vapor pressures sufficient to sublime?

Please solve the below questions using the attached diagram: If I had a quantity of this substance at a pressure 2.0 atm and a temperature of -150 degrees celsius, what phas change(s) would occur if I decreased the pressure to 0.25 atm?  At what pressure(s) would they occur?  (Note:  multiple answers needed for this question)

Refer to the following phase diagram (not to scale!) for hydrogen: 12.8 1.00 atm 0.071 13.9 14.0 20.3 33.2 T Kelvin A sample of hydrogen at a pressure of 7.10x10 atm and a temperature of 11.4 K is compressed at constant temperature to a pressure of 18.2 atm. Which of the following are true? Choose all that apply O The liquid initially present will vaporize. O The final state of the substance is a solid. O The sample is initially a solid. O No phase change will occur. O The sample is initially a gas. Submit Answer

Practile Problers Table H Vapor Pressure of Four Liquids 200. propanone ethanol 150. water ethanoic acíd 101.3 kPa 100. 50. 50. 75 100. 125 Whet Temperature (°C) Vapor Pressure (kPa) 25