Balances and thermodynamics
- General balance: In − Out + Generation − Consumption = Accumulation
- Ideal gas: PV = nRT; Raoult's law yᵢP = xᵢPᵢ*
- Gibbs energy ΔG = ΔH − TΔS; ΔG° = −RT ln K
Reactions
- First-order rate: −rA = kCA; half-life t½ = ln 2/k
- Arrhenius: k = A exp(−Ea/RT)
- CSTR (first order): X = kτ/(1 + kτ)
Transport
- Conduction q = kAΔT/L; overall q = UAΔT_lm
- Fick's law: J = −D dC/dx
- Reynolds number Re = ρVD/μ
Design and economics
- Six-tenths rule: C₂ = C₁(S₂/S₁)^0.6
- Present worth P = F/(1 + i)ⁿ
- Minimum reflux needs infinite stages; total reflux gives minimum stages
Test yourself on FE
Reading a summary is the easy part. Take the free 10-question diagnostic to see which of these domains you actually have, then drill the rest.