Nitrogen - Thermal Diffusivity vs. Temperature and Pressure

Calculate thermal diffusivity of nitrogen based on thermal conductivity, density, and specific heat capacity. Thermal diffusivity (α) is the rate of heat transfer through a material, measured in m²/s. Use the formula: α = k / (ρ × Cp), where k is thermal conductivity (W/(m·K)), ρ is density (kg/m³), and Cp is specific heat capacity (J/(kg·K)).

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Thermal Diffusivity (α)-- m²/s
Thermal Diffusivity (α)-- ×10⁻⁶ m²/s
Thermal Diffusivity (α)-- m²/h
Thermal Diffusivity (α)-- ×10⁻⁵ ft²/s
Thermal Diffusivity (α)-- ft²/h

Thermal Diffusivity Formula

α = k / (ρ × Cp)

Where:

  • k = Thermal conductivity (W/(m·K))
  • ρ = Density (kg/m³)
  • Cp = Specific heat capacity at constant pressure (J/(kg·K))
  • α = Thermal diffusivity (m²/s)

Unit Conversions

  • 1 ft²/h = 2.7778×10⁻⁴ ft²/s = 0.09290 m²/h = 2.581×10⁻⁵ m²/s
  • 1 ft²/s = 3600 ft²/h = 334.45 m²/h = 0.09290 m²/s
  • 1 m²/h = 2.7778×10⁻⁴ m²/s = 10.7639 ft²/h = 0.002990 ft²/s
  • 1 m²/s = 3600 m²/h = 38750.1 ft²/h = 10.7639 ft²/s

About Thermal Diffusivity

Thermal diffusivity is the rate of transfer of heat through a material from the hot side to the cold side - a measure of how quickly a material can absorb heat from its surroundings. It has the SI derived unit of m²/s, and is usually denoted α.