def dGE_dns(self):
r'''Calculate and return the mole number derivative of excess
Gibbs energy of a liquid phase using an activity coefficient model.
.. math::
\frac{\partial G^E}{\partial n_i}
Returns
-------
dGE_dns : list[float]
First mole number derivative of excess Gibbs entropy of the liquid
phase, [J/(mol^2*K)]
Notes
-----
'''
return dxs_to_dns(self.dGE_dxs(), self.xs)
def dSE_dns(self):
r'''Calculate and return the mole number derivative of excess
entropy of a liquid phase using an activity coefficient model.
.. math::
\frac{\partial S^E}{\partial n_i}
Returns
-------
dSE_dns : list[float]
First mole number derivative of excess entropy of the liquid
phase, [J/(mol^2*K)]
Notes
-----
'''
dSE_dns = dxs_to_dns(self.dSE_dxs(), self.xs)
if not self.scalar and type(dSE_dns) is list:
dSE_dns = array(dSE_dns)
return dSE_dns
def d2GE_dTdns(self):
r'''Calculate and return the mole number derivative of the first
temperature derivative of excess Gibbs energy of a liquid phase using
an activity coefficient model.
.. math::
\frac{\partial^2 G^E}{\partial n_i \partial T}
Returns
-------
d2GE_dTdns : list[float]
First mole number derivative of the temperature derivative of
excess Gibbs entropy of the liquid phase, [J/(mol^2*K)]
Notes
-----
'''
d2GE_dTdns = dxs_to_dns(self.d2GE_dTdxs(), self.xs)
if not self.scalar and type(d2GE_dTdns) is list:
d2GE_dTdns = array(d2GE_dTdns)
return d2GE_dTdns
