Thermodynamics Calculator

Calculate heat transfer, work, energy, and thermodynamic properties

Thermodynamic Calculations

Calculation Type

Heat Transfer Parameters

Calculation Results

Result

0 J
Heat Transfer

Detailed Results

Temperature Change: 0 K
Energy Transfer: 0 J

Thermodynamic Properties

Internal Energy Change: 0 J
Enthalpy Change: 0 J
Entropy Change: 0 J/K

Process Information

Process Type: -
Efficiency: 0%
Work Ratio: 0

Unit Conversions

Joules: 0 J
Kilojoules: 0 kJ
BTU: 0 BTU
Calories: 0 cal

Thermodynamics Laws

  • • 0th Law: Thermal equilibrium
  • • 1st Law: Energy conservation
  • • 2nd Law: Entropy increases
  • • 3rd Law: Absolute zero

Pressure-Volume Diagram

Common Thermodynamic Processes

Isothermal

  • • Constant temperature
  • • PV = constant
  • • Slow process
  • • ΔU = 0

Adiabatic

  • • No heat transfer
  • • PVγ = constant
  • • Fast process
  • • Q = 0

Isobaric

  • • Constant pressure
  • • V/T = constant
  • • W = PΔV
  • • Common in gases

Isochoric

  • • Constant volume
  • • P/T = constant
  • • W = 0
  • • ΔU = Q

Thermodynamic Constants

Constant Symbol Value Units Description
Universal Gas Constant R 8.314 J/mol·K Ideal gas law constant
Boltzmann Constant kB 1.381 × 10-23 J/K Relates energy to temperature
Avogadro's Number NA 6.022 × 1023 mol-1 Particles per mole
Stefan-Boltzmann Constant σ 5.670 × 10-8 W/m²·K⁴ Blackbody radiation
Specific Heat of Water cp 4186 J/kg·K At 20°C and 1 atm