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Table 2 The compressibility of air and the bulk modulus of air based on Eq. 7 at different temperatures in the gaseous phase

From: Formula of compressibility and using it for air, noble gases, some hydrocarbons gases, some diatomic simple gases and some other fluids

\(\begin{gathered} t \\ (C^{ \circ } ) \\ \end{gathered}\)

\(\begin{gathered} \rho_{m} \\ (mg/cc) \\ \end{gathered}\)

\(\begin{gathered} \chi_{\rm T} \\ ({\text{MPa}}^{ - 1} ) \\ \end{gathered}\)

\(\begin{gathered} {\rm B} \times 10 \\ ({\text{MPa}}) \\ \end{gathered}\)

\(\begin{gathered} t \\ (C^{ \circ } ) \\ \end{gathered}\)

\(\begin{gathered} \rho_{m} \\ (mg/cc) \\ \end{gathered}\)

\(\begin{gathered} \chi_{\rm T} \\ ({\text{MPa}}^{ - 1} ) \\ \end{gathered}\)

\(\begin{gathered} {\rm B} \times 10 \\ ({\text{MPa}}) \\ \end{gathered}\)

−25

1.4224

9.8726

1.0129

5

1.2844

9.7480

1.0259

−24

1.4178

9.8647

1.0137

6

1.2798

9.7478

1.0259

−23

1.4132

9.8570

1.0145

7

1.2752

9.7479

1.0259

−22

1.4086

9.8495

1.0153

8

1.2706

9.7483

1.0258

−21

1.4040

9.8424

1.0160

9

1.2660

9.7488

1.0258

−20

1.3994

9.8355

1.0167

10

1.2614

9.7497

1.0257

−19

1.3948

9.8289

1.0174

11

1.2568

9.7508

1.0256

−18

1.3902

9.8225

1.0181

12

1.2522

9.7521

1.0254

−17

1.3856

9.8164

1.0187

13

1.2476

9.7537

1.0252

−16

1.3810

9.8106

1.0193

14

1.2430

9.7556

1.0251

−15

1.3764

9.8050

1.0199

15

1.2384

9.7577

1.0248

−14

1.3718

9.7997

1.0204

16

1.2338

9.7601

1.0246

−13

1.3672

9.7947

1.0210

17

1.2292

9.7627

1.0243

−12

1.3626

9.7899

1.0215

18

1.2246

9.7656

1.0240

−11

1.3580

9.7854

1.0219

19

1.2200

9.7687

1.0237

−10

1.3534

9.7811

1.0224

20

1.2154

9.7721

1.0233

−9

1.3488

9.7771

1.0228

21

1.2108

9.7757

1.0229

−8

1.3442

9.7734

1.0232

22

1.2062

9.7796

1.0225

−7

1.3396

9.7699

1.0236

23

1.2016

9.7838

1.0221

−6

1.3350

9.7667

1.0239

24

1.1970

9.7882

1.0216

−5

1.3304

9.7637

1.0242

25

1.1924

9.7929

1.0211

−4

1.3258

9.7610

1.0245

26

1.1878

9.7978

1.0206

−3

1.3212

9.7585

1.0247

27

1.1832

9.8030

1.0201

−2

1.3166

9.7563

1.0250

28

1.1786

9.8085

1.0195

−1

1.3120

9.7544

1.0252

29

1.1740

9.8142

1.0189

0

1.3074

9.7527

1.0254

30

1.1694

9.8202

1.0183

1

1.3028

9.7512

1.0255

31

1.1648

9.8265

1.0177

2

1.2982

9.7501

1.0256

32

1.1602

9.8330

1.0170

3

1.2936

9.7491

1.0257

33

1.1556

9.8398

1.0163

4

1.2890

9.7484

1.0258

34

1.1510

9.8468

1.0156

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