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Chapter: 3 Chemistry
    Section: 3.10 Chemical thermodynamics
        SubSection: 3.10.2 Standard molar heat capacities of some inorganic solids

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3.10.2    Standard molar heat capacities of some inorganic solids

Standard molar heat capacities C°p, m at constant pressure are given for some inorganic solid substances B at several temperatures T. Horizontal lines indicate the positions of solid-to-solid transitions. R = 8.314 51 J·K 1·mol 1.

C°pm (T)/R

B

M/(g·mol−1)

BN

24.818

CaAl2Si2O8
(anorthite)
278.207

CaCO3
(calcite)
100.087

 CaO

56.077

Fe3O4
(α/β)
231.539

 MgO

40.3044

 NaCl

58.4425

 SiC

88.170

T/K

 

 

 

 

 

 

 

  

 298.15    .   .   .   .

2.373

25.415

10.039

5.066

18.129

4.463

6.074

3.245

 400    .   .   .   .   .   .

3.160

30.366

11.665

5.608

21.126

5.119

6.299

4.046

 600     .    .    .    .    .    .

4.233

34.696

13.214

6.071

25.070

5.704

6.671

5.062

 800     .    .    .    .    .    .

4.865

37.108

14.176

6.302

32.085

5.982

7.135

5.564

1000     .    .    .    .    .    .

5.336

38.965

14.971

6.463

25.006

6.159

7.803

5.850

1200     .    .    .    .    .    .

5.639

40.603

15.700

6.594

23.607

6.293

 

6.036

1500     .    .    .    .    .    .

5.854

42.884

 

6.768

23.652

6.458

 

6.226

2000     .    .    .    .    .    .

5.888

 

 

7.032

 

6.693

 

6.442

 

 

 

 

 

 

 

 

 


B

M/(g·mol−1)

SiO2
(I|II|III)
60.0843

ThO2

264.0369

TiO2
(rutile)
79.88

UO2

270.0277

 WC

195.85

 ZnO

81.39

ZnS
(wurtzite)
97.46

ZrO2
(α|β)
123.223

T/K

 

 

 

 

 

 

 

 

  298.15     .    .    .    .    .    .

5.362

  7.433

6.627

  7.650

4.255

4.941

5.518

6.741

  400     .    .    .    .    .    .    .

6.426

  8.157

7.557

  8.667

4.912

5.374

5.834

7.679

  600     .    .    .    .    .    .    .

7.748

  8.779

8.411

  9.513

5.485

5.788

6.123

8.447

  800     .    .    .    .    .    .    .

8.864

  9.114

8.789

  9.949

5.794

6.047

6.293

8.834

1000     .    .    .    .    .    .    .

8.293

  9.367

9.002

10.267

6.021

6.261

6.429

9.110

1200     .    .    .    .    .    .    .

8.593

  9.588

9.145

10.539

6.209

6.457

6.552

9.343

1500     .    .    .    .    .    .    .

8.764

  9.892

9.298

10.908

6.449

6.737

6.725

8.957

2000     .    .    .    .    .    .    .

 

10.372

9.486

11.483

6.775

7.189

 

8.957

 

 

 

 

 

 

 

 

 

M.L. McGlashan

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