		J·K^-1 mol^-1						kJ·mol^-1
Sodium Sulfide (Na₂S₂)								Na₂S₂(cr,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
250

298.15		98.625		150.624		150.624		0.		-397.062		-392.173		68.707

300		98.726		151.234		150.626		0.183		-397.067		-392.142		68.278
400		104.299		180.399		154.565		10.334		-407.354		-389.839		50.908
500		109.872		204.272		162.187		21.042		-410.704		-385.082		40.229

600		115.445		224.796		170.949		32.308		-412.640		-379.752		33.060
700		121.018		243.011		179.966		44.131		-413.415		-374.196		27.923

753.000		123.972		251.950		184.720		50.624		BETA <--> LIQUID
753.000		124.683		277.065		184.720		69.535		TRANSITION

800		124.683		284.614		190.370		75.395		-394.391		-369.773		24.144
900		124.683		299.299		201.673		87.864		-500.211		-364.559		21.158
1000		124.683		312.436		212.104		100.332		-497.229		-349.647		18.264

1100		124.683		324.320		221.774		112.800		-494.321		-335.030		15.909
1200		124.683		335.168		230.778		125.269		-685.047		-315.794		13.746
1300		124.683		345.148		239.197		137.737		-680.541		-285.206		11.460
1400		124.683		354.388		247.099		150.205		-676.066		-254.963		9.513
1500		124.683		362.991		254.542		162.674		-671.622		-225.040		7.837

PREVIOUS:								CURRENT: December 1983

Sodium Sulfide (Na₂S₂)								Na₂S₂(cr,l)

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