Thermodynamical Quantities of Chalcogenide Dimers (O₂, S₂, Se₂, and Te₂) from Spectroscopic Data

Table 2

Calculated thermodynamical properties of sulphur molecule (S₂) at 1 Atm.

T (K)	S2 molecule
	F (kJ/mole)	H (kJ/mole)	S (J/mole/K)	𝐶𝑝 (J/mole/K)
100	15.67	2.07	194.91	29.10
200	35.37	5.64	215.32	30.34
300	56.66	8.65	228.02	32.41
400	79.04	11.57	237.58	33.95
500	102.28	14.51	245.28	34.95
600	126.23	17.43	251.73	35.59
700	150.76	20.36	257.26	36.01
800	175.82	23.29	262.10	36.30
900	201.33	26.22	266.41	36.51
1000	227.24	29.16	270.28	36.67
1100	253.52	32.11	273.79	36.79
1200	280.14	35.06	277.01	36.88
1300	307.06	38.02	279.98	36.95
1400	334.27	40.98	282.73	37.00
1500	361.75	43.94	285.30	37.05
1600	389.47	46.92	287.71	37.09
1700	417.42	49.89	289.97	37.12
1800	445.59	52.88	292.11	37.14
1900	473.97	55.86	294.13	37.17
2000	502.55	58.86	296.05	37.18
2100	531.31	61.85	297.88	37.20
2200	560.24	64.86	299.62	37.21
2300	589.35	67.86	301.29	37.23
2400	618.62	70.88	302.89	37.24
2500	648.04	73.90	304.42	37.25
2600	677.62	76.92	305.89	37.25
2700	707.33	79.95	307.31	37.26
2800	737.19	82.98	308.68	37.27
2900	767.17	86.02	310.00	37.27
3000	797.29	89.07	311.28	37.28

Where F is free energy (kJ/mole), H is enthalpy (kJ/mole), S is entropy (J/mole/K), 𝐶_𝑝 is specific heat (J/mole/K), and T is temperature (K).