Based on the phase diagram of CO₂ below, determine which of the points, A, B, C, or D, CO₂(g) exhibits the least ideal behavior.

You have two 5 L sealed containers at 400 K: one contains 3.0 mol of He while the other contains 3.0 mol of N₂. Which gas will have a higher average velocity?

Consider a 2.00 L vessel filled with O₂ gas. If the temperature is decreased from 25 °C to 5 °C and the volume is held constant, how would this affect the average kinetic energy of the gas molecules?

Under which conditions would a gas behave most ideally?

(a) High temperature, low pressure

(b) Low temperature, high pressure

(c) Average temperature and pressure

Consider equal masses of O₂(g) and HI(g) that are in separate containers with equal volume and temperature. Which of the statements below is true?

True or False: At high pressures and low temperatures, deviations from the ideal gas law are less significant.