2. What to study
You are responsible for all material covered in chapters 5-6, as well as information covered in the lectures. Furthermore, although chapters 1-4 are not covered in this exam, it is assumed that you know how to balance equations, know what combustion reactions, know the naming conventions for hydrocarbons and simple molecular compounds,etc. Please pay special attention to the following:
- Understand how to calculate forces to due gravity of a mass, and also the pressure related to areas and forces
- Understand how closed and open-tube manometers work
- You are responsible for memorizing the ideal gas law and its applications
. You also are responsible for knowing what are the conditions under "Standard temperature and pressure" (i.e. STP)
- Know how to calculate effects upon gas volume if temperature and pressure change. Likewise for temperature if volume and pressure change, and for pressure if volume and temperature change
- Know how to determine the molar mass of a gas sample if provided information about other physical parameters (volume, temp, etc.)
- Be able to calculate partial pressures. Understand the concept of mole fractions
- Understand the meaning of density
- Know how to calculate kinetic energy
- Understand what enthalpies of reactions are, and what balanced thermochemical equations are and how to apply them
- Understand what specific heat is, what molar heat capacity is, and the relationship between heat energy, mass, temperature change and specific heat
- Understand what standard enthalpies of formation are, and how to calculate heats of reactions from standard enthalpies of formation.
- Know what Hess' Law is, and its application in thermochemical reactions
You will be provided the following:
- Values of the gas constant
- Values for relevant specific heats and enthalpies of formation
- Conversion factors relating to pressure, mass, length, energy