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Review and Discussion Questions

Author: John Hutchinson

Problem 1  Explain the significance to the development of the kinetic molecular model of the observation that the ideal gas law works well only at low pressure.
Problem 2 Explain the significance to the development of the kinetic molecular model of the observation that the pressure predicted by the ideal gas law is independent of the type of gas.
Problem 3 Sketch the value of PV/nRT as a function of density for two gases, one with strong intermolecular attractions and one with weak intermolecular attractions but strong repulsions.
Problem 4 Give a brief molecular explanation for the observation that the pressure of a gas at fixed temperature increases proportionally with the density of the gas.
Problem 5 Give a brief molecular explanation for the observation that the pressure of a gas confined to a fixed volume increases proportionally with the temperature of the gas.
Problem 6 Give a brief molecular explanation for the observation that the volume of a balloon increases roughly proportionally with the temperature of the gas inside the balloon.
Problem 7 Explain why there is a correlation between high boiling point and strong deviation from the Ideal Gas Law.
Problem 8 Referring to figure 4, explain why the hydride of the Group IV element always has the lowest boiling point in each period.
Problem 9 Explain why the Period 2 hydrides except CH4 all have high boiling points, and explain why CH4 is an exception.



Last Update: 2011-02-16