1. Consider the following two substances and their vapor pressures at 298 K. Substance Vapor Pressure (mmHg) A) 275
B) 459
Based on this information compared the characteristics of the two substances?
2. The vapor pressure of dichloromethane, CH2Cl2, at 0 degrees C is 134 mmHg. The normal boiling point of dichloromethane is 40 degrees C. Calculate its molar heat of vaporization?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.

If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?