		J·K^-1 mol^-1						kJ·mol^-1
Lead Sulfide (PbS)								Pb₁S₁(l)

Enthalpy Reference Temperature = T_r = 298.15 K								Standard State Pressure = p° = 0.1 MPa
T/K		C_p^°		S^°		-[G^°-H^°(T_r)]/T		H-H^°(T_r)		_fH^°		_fG^°		log K_f
0
100
200

298.15		49.438		100.795		100.795		0.		-84.064		-85.242		14.934

300		49.455		101.101		100.796		0.091		-84.064		-85.250		14.843
400		50.459		115.459		102.746		5.085		-86.396		-85.544		11.171
500		51.463		126.827		106.464		10.181		-88.042		-85.153		8.896

600		52.384		136.291		110.668		15.373		-89.323		-84.449		7.352
700		53.346		144.440		114.924		20.661		-95.205		-82.755		6.175
800		54.308		151.627		119.071		26.045		-96.049		-80.916		5.283
900		55.271		158.078		123.053		31.522		-149.814		-77.904		4.521

900.000		55.271		158.078		123.053		31.522		GLASS <--> LIQUID
900.000		66.944		158.078		123.053		31.522		TRANSITION

1000		66.944		165.131		126.914		38.217		-147.930		-70.014		3.657

1100		66.944		171.512		130.683		44.911		-146.032		-62.315		2.959
1200		66.944		177.336		134.332		51.606		-144.118		-54.788		2.385
1300		66.944		182.695		137.849		58.300		-142.197		-47.422		1.905

1386.500		66.944		187.007		140.782		64.091		CRYSTAL <--> LIQUID

1400		66.944		187.656		141.231		64.994		140.283 40.204 1.500
1500		66.944		192.275		144.482		71.689		-138.386		-33.122		1.153

1600		66.944		196.595		147.606		78.383		-136.513		-26.165		0.854
1700		66.944		200.654		150.608		85.078		-134.667		-19.325		0.594
1800		66.944		204.480		153.495		91.772		-132.850		-12.593		0.365
1900		66.944		208.099		156.275		98.466		-131.065		-5.961		0.164
2000		66.944		211.533		158.953		105.161		-129.312		0.578		-0.015

PREVIOUS:								CURRENT: June 1973

Lead Sulfide (PbS)								Pb₁S₁(l)

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