If you double the absolute temperature of a fixed amount of gas and reduce its pressure by half, what will happen to the volume of the gas?

The plot below shows the distribution of molecular speeds for three different gases all at the same temperature: CH4, H2, and Kr.  These gases are marked as A, B, and C in no particular order.  Which line is most likely to represent H2?

Which of the following gases would deviate the most from ideal gas behavior?

Which intermolecular forces are experienced between molecules of NH3?

Below are two different pure liquids (Liquid A and Liquid B) shown resting on a flat surface at the same temperature: Which of the following statements concerning these liquids is true?

Which of the following substances would you predict will have the lowest vapor pressure at a temperature of 300 K?        

Which of the following gases would have a faster effusion rate than N2? Hint: Assume all gases are at the same temperature.

A 55.0 L tank contains 175 g of propane. What is its pressure, in atm, at standard temperature (0°C)? Hint:  molar mass of propane = 44.1 g/mol

A mixure of gases with a total pressure of 1.13 atm contains 3.5 mol H2, 7.1 mol CH4, and 1.3 mol CO2. What is the partial pressure (in atm) of hydrogen?

Consider the phase diagram for neon: When the pressure is 10-2 atm, at what temperature will neon melt?