Gen chem things for the MCAT

  1. Breaking bonds is always _____ while forming bonds is always ____
    • endothermic
    • exothermic
  2. What are the strengths of the IMF's in descending order?
    • 1.Ionic bonds
    • 2.Hydrogen bonding
    • 3.Dipole-dipole
    • 4.Dipole-induced dipole
    • 5.London dispersion forces
  3. What is the equation for Gibb's free energy? ΔG
    ΔG= ΔH-TΔS

    When H is the energy within chemical bonds (endo or exo) and S is the level of entropy
  4. A reaction is spontaneous when ΔG is ______
    negative (exergonic)
  5. On a phase diagram, water has a ____ slope because its solid form is less dense than its liquid form
    negative
  6. On a phase diagram, what is the equation used on the horizontal lines and what does that line indicate?
    q= nΔH

    A phase change. The temperature is NOT changing at this point.
  7. What is the equation for the slope of the phase diagram, and what does the slope indicate?
    q= mcΔT

    This is for the period in which the substance is heating up before it undergoes the phase change. Unlike the horizontal part, the temperature IS changing here
Author
BagelHyrax
ID
358903
Card Set
Gen chem things for the MCAT
Description
Gem chem
Updated