def LiqEtlp_pT(P,T,x_N2):
	x = (P-5.62637073e+02)/2.47804800e-01
	y = (T--1.74564594e+02)/1.00692600e-01
	z = (x_N2-6.85595270e-01)/1.37248686e-02
	output = \
	    1*-8.48840641e+02
	liq_etlp = output*1.00000000e+00+0.00000000e+00
	return liq_etlp