Termochemické veličiny látek

Molární tepelná kapacita je dána vztahem C°pm = a + bT

Látka

Vzorec

Skup.

pm střední

J K-1mol-1

pm

J K-1mol-1

T horní

(ΔH°SL)298

(ΔG°SL)298

298

a

b·103

K

kJ mol-1

kJ mol-1

J K-1mol-1

Bróm

Br2

g

37.19

35.04

5.76

3000

30.91

3.20

245.39

Uhlík (grafit)

C

s

16.75

- -

4000

0

0

5.74

Chlór

Cl2

g

36.08

30.25

15.21

4000

0

0

223.08

Fluór

F2

g

34.68

32.32

1.18

4000

0

0

202.77

Železo

Fe

s

33.87

- -

2200

0

0

27.31

Vodík

H2

g

29.39

23.43

15.17

4000

0

0

130.68

Dusík

N2

g

30.90

25.82

10.94

4000

0

0

191.61

Kyslík

O2

g

32.28

25.91

14.87

4000

0

0

205.15

Síra rhombická

S

s

32.86

- -

800

0

0

32.04

Síra plynná

S2

g

36.00

31.58

10.12

3000

128.60

79.62

228.16

Oxid hlinitý

Al2O3

s

111.06

- -

3000

-1675.97

-1582.59

50.91

Chlorid hlinitý

AlCl3

s

122.85

- -

1500

-705.64

-630.06

109.24

Uhličitan barnatý

BaCO3

s

118.67

- -

1079

-1210.85

-1132.25

112.13

Síran barnatý

BaSO4

s

141.44

- -

1300

-1465.24

-1372.88

132.21

Dikyan

C2N2

g

68.92

15.97

133.42

4000

309.07

297.61

241.57

Hydroxid vápenatý

Ca(OH) 2

s

148.79

- -

1000

-986.09

-898.47

83.34

Uhličitan vápenatý

CaCO3

s

118.76

- -

1200

-1206.83

-1128.37

87.99

Oxid vápenatý

CaO

s

49.13

- -

3600

-635.09

-603.52

38.19

Síran vápenatý

CaSO4

s

134.29

- -

1400

-1432.60

-1320.30

106.69

Oxid uhelnatý

CO

g

31.14

25.70

11.11

3000

-110.53

-137.14

197.55

Oxid uhličitý

CO2

g

46.39

30.71

28.23

3000

-393.51

-394.37

213.67

Fosgen

COCl2

g

74.51

47.37

33.78

2000

-220.08

-205.94

283.74

Sirouhlík

CS2

g

54.97

16.24

87.26

3000

116.70

66.57

237.77

Oxid měďnatý

CuO

s

53.35

- -

2000

-156.07

-128.31

42.57

Síran měďnatý

CuSO4

s

150.17

- -

2000

-769.99

-660.84

109.21

Oxid železitý

Fe2O3

s

192.77

- -

950

-825.51

-743.56

87.35

Oxid železnatoželezitý

Fe3O4

s

249.57

- -

900

-1120.91

-1017.49

145.19

Oxid železnatý

FeO

s

55.15

- -

2000

-272.05

-251.44

60.73

Disulfid železnatý (pyrit)

FeS2

s

83.83

- -

1400

-171.54

-160.07

52.88

Voda

H2O

l

76.36

- -

500

-285.84

-237.17

69.91

Voda

H2O

g

37.57

22.65

34.96

3000

-241.81

-228.59

188.72

Peroxid vodíku

H2O2

g

53.46

31.11

45.07

3000

-135.88

-105.72

234.41

Sulfan

H2S

g

40.29

24.45

33.05

3000

-20.60

-33.48

205.69

Kyselina sírová

H2SO4

l

148.28

- -

1000

-814.01

-690.01

156.91

Bromovodík

HBr

g

30.50

24.43

13.34

3000

-36.38

-53.40

198.59

Chlorovodík

HCl

g

30.33

24.74

13.01

3000

-92.31

-95.30

186.79

Kyanovodík

HCN

g

43.54

28.82

30.41

4000

135.14

124.73

201.83

Fluorovodík

HF

g

29.58

25.77

10.11

3000

-273.30

-275.40

173.67

Kyselina dusičná

HNO3

g

81.97

-8.87

205.29

3000

-133.91

-73.78

266.78

Bromid draselný

KBr

s

58.69

- -

1500

-393.80

-380.44

95.91

Chlorid draselný

KCl

s

58.09

- -

1500

-436.69

-408.77

82.53

Dusičnan draselný

KNO3

s

137.97

- -

401

-494.55

-394.64

132.88

Hydroxid hořečnatý

Mg(OH) 2

s

113.74

- -

541

-924.66

-833.71

63.18

Uhličitan hořečnatý

MgCO3

s

109.75

- -

1000

-1111.69

-1028.17

65.82

Oxid hořečnatý

MgO

s

45.40

- -

4000

-601.24

-568.96

26.91

Síran hořečnatý

MgSO4

s

126.06

- -

2400

-1261.79

-1147.47

91.35

Oxid dusnatý

NO

g

31.77

26.45

10.53

3000

91.26

85.79

216.64

Oxid dusičitý

NO2

g

48.30

9.08

89.55

3000

34.19

52.29

240.06

Oxid dusičitý - dimer

N2O4

g

108.68

17.46

205.74

3000

11.11

99.68

304.35

Nitrosyl chlorid

NOCl

g

51.16

26.14

58.35

3000

52.70

67.08

261.47

Amoniak

NH3

g

46.51

19.03

58.04

3000

-45.94

-16.45

192.66

Chlorid amonný

NH4Cl

s

115.54

- -

457

-314.57

-203.15

94.82

Síran amonný

(NH4)2SO4

s

285.76

- -

600

-1180.26

-901.35

220.08

Bromid sodný

NaBr

s

56.78

- -

2000

-361.41

-349.27

86.79

Chlorid sodný

NaCl

s

56.93

- -

1500

-411.12

-384.04

72.09

Hydrouhličitan sodný

NaHCO3

s

138.27

- -

500

-949.08

-851.11

101.25

Dusičnan sodný

NaNO3

s

172.29

- -

579

-468.19

-367.36

116.40

Hydroxid sodný

NaOH

s

99.24

- -

572

-425.94

-379.76

64.42

Uhličitan sodný

Na2CO3

s

179.40

- -

723

-1130.78

-1048.05

138.74

Ozón

O3

g

52.08

15.67

70.79

2000

141.80

162.26

238.90

Chlorid fosforitý

PCl3

g

77.83

54.88

57.35

4000

-288.70

-269.62

311.65

Chlorid fosforečný

PCl5

g

123.29

81.13

105.37

4000

-360.20

-290.31

364.23

Fosfin

PH3

g

51.72

27.44

48.29

4000

22.88

30.89

210.22

Oxid siřičitý

SO2

g

47.76

36.13

20.00

3000

-296.81

-300.14

248.11

Oxid sírový

SO3

g

68.63

-1.92

158.80

3000

-395.90

-371.16

256.44

Sulfuryl chlorid

SO2Cl2

g

92.69

35.40

143.58

4000

-354.81

-310.35

311.06

Methan

CH4

g

55.62

6.23

103.74

3000

-74.60

-50.58

186.26

Ethan

C2H6

g

90.02

15.75

142.95

3000

-84.00

-32.11

229.05

Propan

C3H8

g

131.42

21.05

181.70

1500

-103.85

-23.60

270.20

Butan

C4H10

g

172.52

32.15

229.98

1500

-125.77

-16.73

309.91

2-methylpropan

C4H10

g

173.10

30.50

231.50

1500

-134.64

-21.27

295.39

Pentan

C5H12

g

211.52

40.09

280.28

1500

-146.44

-8.41

348.95

2-methylbutan

C5H12

g

212.54

37.52

285.72

1500

-154.47

-14.85

343.59

2,2-dimethylpropan

C5H12

g

216.91

44.06

278.04

1500

-165.98

-15.27

306.39

Hexan

C6H14

g

251.19

48.97

330.01

1500

-167.19

-0.30

388.40

Heptan

C7H16

g

290.86

57.81

379.86

1500

-187.78

8.00

427.77

Oktan

C8H18

g

330.53

66.76

429.26

1500

-208.45

16.34

466.73

Nonan

C9H20

g

370.93

97.30

384.49

1000

-229.03

24.77

505.68

Dekan

C10H22

g

409.82

84.46

528.95

1500

-249.66

33.15

544.63

Ethylen

C2H4

g

84.95

32.02

56.80

1500

52.40

68.24

219.47

Propen

C3H6

g

110.17

22.61

144.07

1500

20.42

62.83

266.60

1-buten

C4H8

g

149.53

30.55

194.40

1500

-0.13

71.29

305.60

cis-2-buten

C4H8

g

144.43

20.07

203.68

1500

-6.99

65.85

300.83

trans-2-buten

C4H8

g

148.80

31.51

193.74

1500

-11.17

62.97

296.44

2-methylpropen

C4H8

g

150.54

34.43

191.08

1500

-16.90

58.10

293.55

1-penten

C5H10

g

189.58

40.24

243.56

1500

-20.92

79.13

345.81

Acetylen

C2H2

g

56.86

30.23

52.46

3000

227.40

209.89

200.82

Propin

C3H4

g

92.36

38.29

78.30

1000

185.43

194.43

248.11

Propadien

C3H4

g

93.12

31.10

100.81

1500

192.13

202.35

244.05

1,3-butadien

C4H6

g

133.12

36.65

153.98

1500

110.16

150.67

278.74

Cyklobutan

C4H8

g

144.95

8.84

218.65

1500

28.40

110.60

269.40

Cyklopentan

C5H10

g

180.05

2.27

284.84

1500

-78.40

37.43

292.86

Cyklohexan

C6H12

g

227.48

3.60

354.54

1500

-123.30

31.83

297.28

Cyklohexen

C6H10

g

204.17

19.01

295.24

1500

-4.60

107.68

310.52

Benzen

C6H6

g

158.30

30.27

215.59

2000

82.80

129.61

269.05

Toluen

C7H8

g

196.10

35.94

271.02

2000

50.17

122.13

321.00

Ethylbenzen

C8H10

g

239.20

51.43

258.50

1000

29.92

130.70

360.60

o-Xylen

C8H10

g

234.44

45.66

324.77

2000

19.08

121.88

353.80

m-Xylen

C8H10

g

231.95

39.53

328.74

2000

17.32

118.72

358.50

p-Xylen

C8H10

g

233.09

40.92

327.38

2000

18.03

121.31

352.20

Propylbenzen

C9H12

g

278.34

53.70

356.87

1500

7.82

137.28

400.66

Isopropylbenzen

C9H12

g

279.20

54.18

356.39

1500

3.93

136.99

388.57

Styren

C8H8

g

219.53

50.19

266.18

1500

147.36

213.85

345.10

Naftalen

C10H8

g

251.81

51.78

274.21

1000

150.96

223.59

335.64

Methanol

CH4O

l

38.02

- -

383

-238.57

-166.23

126.78

Methanol

CH4O

g

68.60

19.31

96.14

3000

-201.00

-162.37

239.76

Ethanol

C2H6O

l

137.80

- -

323

-277.63

-174.76

160.67

Ethanol

C2H6O

g

106.78

28.71

148.64

3000

-234.80

-167.93

281.30

1-propanol

C3H8O

g

147.72

31.01

189.80

1500

-256.40

-161.21

322.58

2-propanol

C3H8O

g

149.31

39.59

173.63

1500

-272.42

-173.24

309.20

1-butanol

C4H10O

g

188.59

39.16

240.04

1500

-274.68

-150.49

361.59

1-pentanol

C5H12O

g

227.25

64.34

230.37

1000

-302.38

-149.75

402.54

1,2-ethanediol

C2H6O2

g

135.62

46.33

124.77

1000

-387.86

-297.14

303.80

Cyklohexanol

C6H12O

g

252.62

36.96

300.71

1000

-294.55

-117.93

327.69

Fenol

C6H6O

g

180.72

54.78

211.17

2000

-96.40

-32.76

315.13

Dimethyléter

C2H6O

g

103.64

29.28

142.03

3000

-184.05

-113.02

267.34

Diethyléter

C4H10O

l

175.20

- -

300

-272.50

-118.41

250.85

Diethyléter

C4H10O

g

190.72

52.31

230.90

1500

-252.21

-122.38

342.67

Oxiran

C2H4O

g

84.26

19.78

119.35

3000

-52.60

-13.19

242.90

Formaldehyd

CH2O

g

49.46

20.95

54.99

3000

-108.70

-102.51

218.05

Ethanal

C2H4O

g

87.79

25.43

103.31

1500

-165.31

-132.18

263.95

Propanal

C3H6O

g

132.86

24.60

185.91

1500

-186.00

-124.33

304.51

Aceton

C3H6O

g

124.76

29.97

156.14

1500

-217.15

-153.43

297.62

Keten

C2H2O

g

71.34

38.82

45.29

1000

-61.09

-60.26

241.79

Cyklohexanon

C6H10O

g

223.97

34.57

263.76

1000

227.54 (?)

364.41

330.50

Mravenčí kyselina

CH2O2

g

68.40

32.08

65.20

3000

-378.80

-351.21

248.76

Octová kyselina

C2H4O2

g

107.72

26.33

128.10

1500

-432.25

-374.38

283.47

Octová kyselina

C2H4O2

l

133.72

- -

350

-487.02

-392.46

159.63

Propionová kyselina

C3H6O2

g

147.32

55.83

127.84

1000

-453.50

-366.69

322.67

Acetanhydrid

C4H6O3

g

191.29

42.85

186.36

1000

-575.72

-476.68

389.95

Mravenčan methylnatý

C2H4O2

g

103.53

29.60

121.00

1500

-355.51

-298.18

285.28

Octan ethylnatý

C4H8O2

g

184.80

60.00

173.48

1000

-443.70

-328.22

362.75

Methylamin

CH5N

g

83.97

25.53

96.69

1500

-23.00

31.99

243.40

Acetonitril

C2H3N

g

78.39

32.56

65.57

1000

74.04

91.81

243.47

Nitromethan

CH3NO2

g

93.06

31.84

85.72

1000

-74.73

-6.95

275.01

Anilin

C6H7N

g

194.36

51.13

221.59

1500

87.03

166.71

319.80

Chloromethan

CH3Cl

g

61.35

21.96

75.34

3000

-81.87

-58.39

234.29

Trichloromethan

CHCl3

g

91.21

-6.76

224.97

3000

-102.70

-70.15

296.24

Tetrachlormethan

CCl4

g

105.45

71.54

36.21

2000

-100.42

-58.24

310.12

Methanthiol

CH4S

g

75.04

31.65

62.14

1000

-22.90

-9.87

255.06