Chem/Phys · 5E

Thermodynamics, kinetics, and equilibrium

Content category 5E. 27 questions in 5 sets, each with reasoning for every answer choice.

Set 1 · Equilibrium

  1. Le Châtelier's principle: pressure and moles of gaseasy
  2. ΔG° when K = 1easy
  3. Reaction quotient vs. equilibrium constantmedium
  4. Equilibrium expressions with solidsmedium
  5. Temperature and K for an exothermic reactionmedium

Set 2 · Kinetics

  1. Calculating Q to predict directionhard
  2. Equilibrium constant from ΔG°hard
  3. Why temperature increases reaction rateeasy
  4. Rate law from initial ratesmedium
  5. First-order half-lifemedium

Set 3 · Kinetics

  1. Rate change from a rate lawmedium
  2. Rate law from a mechanismhard
  3. Heat to boil off watereasy
  4. Why temperature stays constant during boilingmedium
  5. Oxidation state in permanganatemedium

Set 4 · Thermochemistry

  1. Identifying the oxidizing agentmedium
  2. Limiting reagentmedium
  3. Heat to warm watermedium
  4. Final temperature after mixing waterhard
  5. Reaction enthalpy from bond enthalpieshard

Set 5 · Thermodynamics

  1. Gibbs free energy: when is a reaction spontaneous?medium
  2. First law of thermodynamicsmedium
  3. Isothermal expansion of an ideal gasmedium
  4. Heat transfer: convectionmedium
  5. Processes that increase entropymedium
  6. Calculating ΔGmedium
  7. Temperature at which a reaction becomes spontaneoushard