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Heat & thermodynamics formulas
20 formulas for Heat & thermodynamics, from the Physics — Formulas section of the Quantix formula library. Tap 🧮 next to a formula to solve it for any variable with step-by-step working.
| Name | Formula | Note |
|---|---|---|
| Heat | Q = mcΔT 🧮 Solve step by step | J |
| Latent heat | Q = mL 🧮 Solve step by step | J |
| Linear expansion | ΔL = αLΔT 🧮 Solve step by step | |
| Volume expansion | ΔV = γVΔT, γ = 3α 🧮 Solve step by step | |
| Ideal gas law | PV = nRT = Nk_BT 🧮 Solve step by step | |
| Kinetic theory — pressure | P = ⅓ρv²_rms 🧮 Solve step by step | |
| RMS speed | v_rms = √(3RT/M) 🧮 Solve step by step | m/s |
| Average KE per molecule | KE = (3/2)k_BT 🧮 Solve step by step | J |
| Heat conduction | Q/t = kAΔT / L 🧮 Solve step by step | W |
| Stefan–Boltzmann law | P = σAeT⁴ 🧮 Solve step by step | W |
| Wien's law | λ_max T = b 🧮 Solve step by step | |
| Newton's law of cooling | dT/dt = −k(T − T₀) | |
| First law of thermodynamics | ΔU = Q − W 🧮 Solve step by step | W done by the system |
| Work (isobaric) | W = PΔV 🧮 Solve step by step | J |
| Work (isothermal) | W = nRT ln(V₂/V₁) 🧮 Solve step by step | J |
| Adiabatic process | PV^γ = constant; W = (P₁V₁ − P₂V₂)/(γ − 1) 🧮 Solve step by step | |
| Mayer's relation | C_p − C_v = R 🧮 Solve step by step | |
| Carnot efficiency | η = 1 − T_c/T_h 🧮 Solve step by step | |
| Coefficient of performance (fridge) | COP = T_c/(T_h − T_c) 🧮 Solve step by step | |
| Entropy change | ΔS = Q/T 🧮 Solve step by step | J/K |
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