Physical Chemistry Calculators

Physical Chemistry Calculators

Physical chemistry calculators provide essential computational tools for thermodynamics, gas laws, colligative properties, and kinetic molecular theory. These interactive calculators help students and researchers solve complex equations involving ideal and real gases, diffusion rates, molecular speeds, and solution behavior with precision and efficiency.

Use specialized physical chemistry tools to calculate osmotic pressure, vapor pressure lowering, heat capacities, and expansion work in gaseous systems. Each calculator implements fundamental physical chemistry principles like Raoult’s Law, Henry’s Law, and Graham’s Law to deliver accurate results for academic study and laboratory applications.

⚠ Disclaimer: This calculator provides results based on standard formulas and simplified assumptions. It is intended for educational purposes only and should not be used for professional, medical, industrial, or experimental applications without expert verification.

Ideal Gas Law (PV=nRT)

PV = nRT, R = 0.08206 L·atm/mol·K

Real Gas (Van der Waals)

(P + a(n/V)²)(V – nb) = nRT

Gas Density

ρ = PM/RT

Gas Partial Pressures (Dalton’s Law)

Pgas = X × Ptotal

Mole Fraction

Mass Fraction in Mixture

Boiling Point Elevation

ΔTb = Kb × m

Freezing Point Depression

ΔTf = Kf × m

Osmotic Pressure

π = C·R·T, R = 0.08206 L·atm/mol·K

Vapor Pressure Lowering

ΔP = P° × Xsolute

Raoult’s Law

P = P° × Xsolvent

Henry’s Law

P = kH × C

Diffusion Coefficient (Graham’s Law)

Rate1/Rate2 = √(M2/M1)

Root Mean Square Speed

Urms = √(3RT/M)

Average Molecular Speed

uavg = √(8RT/πM)

Most Probable Speed

ump = √(2RT/M)

Gas Effusion Time

t2/t1 = √(M2/M1)

Compressibility Factor (Z)

Z = PV/nRT

Heat Capacity (Cv, Cp)

Expansion Work in Gases

w = -PΔV