code: def alpha(self):
          r'''Thermal diffusivity of the chemical at its current temperature,
          pressure, and phase in units of [m^2/s].
  
          .. math::
              \alpha = \frac{k}{\rho Cp}
  
          Examples
          --------
          >>> Chemical('furfural').alpha
          8.696537158635412e-08
          '''
          return phase_select_property(phase=self.phase, l=self.alphal, g=self.alphagf alpha(self):
          r'''Thermal diffusivity of the chemical at its current temperature,
          pressure, and phase in units of [m^2/s].
  
          .. math::
              \alpha = \frac{k}{\rho Cp}
  
          Examples
          --------
          >>> Chemical('furfural').alpha
          8.696537158635412e-08
          '''
          return phase_select_property(phase=self.phase, l=self.alphal, g=self.alphag)
docs: r'''Thermal diffusivity of the chemical at its current temperature,
          pressure, and phase in units of [m^2/s].
  
          .. math::
              \alpha = \frac{k}{\rho Cp}
  
          Examples
          --------
          >>> Chemical('furfural').alpha
          8.696537158635412e-08