Table 7 Predicted and observed data on molar entropy (J mol−1 K−1), reduced molar enthalpy (kJ mol−1), reduced molar Gibbs free energy (J mol−1 K−1) and constant pressure molar heat capacity (J mol−1 K−1) for the KBr (X 1Σ+) molecule.

From: Bound-state energy spectrum and thermochemical functions of the deformed Schiöberg oscillator

T (K)

Entropy

Enthalpy

– RGFEa

CPHCb

T (K)

Entropy

Enthalpy

– RGFEa

CPHCb

S

SNIST

Hscaled

HNIST

Gscaled

GNIST

Cp

CpNIST

 

S

SNIST

Hscaled

HNIST

Gscaled

GNIST

Cp

CpNIST

300

250.761

255.952

0.068

0.069

250.533

255.723

36.932

37.076

3100

339.981

344.027

108.383

106.407

305.018

309.702

39.853

38.816

350

256.471

261.675

1.921

1.925

250.983

256.175

37.155

37.180

3200

341.247

345.261

112.372

110.293

306.131

310.794

39.932

38.898

400

261.444

266.645

3.783

3.786

251.987

257.180

37.316

37.258

3300

342.477

346.459

116.369

114.187

307.214

311.857

40.012

38.982

450

265.846

271.037

5.652

5.651

253.287

258.480

37.440

37.319

3400

343.673

347.624

120.374

118.090

308.269

312.892

40.091

39.067

500

269.796

274.972

7.526

7.518

254.744

259.936

37.541

37.368

3500

344.836

348.757

124.387

122.001

309.297

313.900

40.170

39.152

600

276.656

281.792

11.289

11.259

257.841

263.028

37.701

37.447

3600

345.969

349.862

128.408

125.920

310.300

314.884

40.249

39.237

700

282.477

287.569

15.066

15.007

260.955

266.131

37.829

37.508

3700

347.073

350.938

132.437

129.848

311.279

315.844

40.328

39.320

800

287.536

292.581

18.854

18.760

263.968

269.131

37.940

37.561

3800

348.149

351.987

136.474

133.784

312.235

316.781

40.408

39.402

900

292.011

297.008

22.653

22.519

266.840

271.988

38.041

37.607

3900

349.200

353.012

140.519

137.728

313.169

317.697

40.487

39.482

1000

296.024

300.973

26.462

26.281

269.562

274.691

38.136

37.651

4000

350.226

354.013

144.571

141.680

314.083

318.593

40.566

39.558

1100

299.663

304.563

30.280

30.049

272.135

277.246

38.226

37.694

4100

351.229

354.990

148.632

145.640

314.977

319.468

40.645

39.632

1200

302.992

307.845

34.107

33.820

274.570

279.661

38.314

37.735

4200

352.209

355.946

152.700

149.606

315.852

320.326

40.724

39.701

1300

306.063

310.867

37.943

37.596

276.876

281.947

38.400

37.776

4300

353.168

356.881

156.777

153.580

316.708

321.165

40.803

39.766

1400

308.911

313.668

41.787

41.375

279.063

284.114

38.484

37.817

4400

354.107

357.796

160.861

157.559

317.548

321.987

40.882

39.826

1500

311.569

316.278

45.640

45.159

281.143

286.172

38.568

37.859

4500

355.027

358.692

164.953

161.545

318.370

322.793

40.961

39.881

1600

314.061

318.723

49.501

48.947

283.123

288.131

38.650

37.902

4600

355.928

359.569

169.053

165.535

319.177

323.583

41.040

39.930

1700

316.407

321.022

53.370

52.740

285.013

289.999

38.732

37.946

4700

356.811

360.428

173.161

169.530

319.969

324.358

41.119

39.973

1800

318.623

323.193

57.247

56.536

286.819

291.783

38.814

37.991

4800

357.678

361.270

177.277

173.530

320.745

325.118

41.198

40.010

1900

320.724

325.248

61.132

60.338

288.549

293.491

38.895

38.038

4900

358.528

362.095

181.401

177.532

321.508

325.864

41.277

40.041

2000

322.721

327.200

65.026

64.144

290.208

295.128

38.975

38.087

5000

359.363

362.904

185.532

181.538

322.256

326.597

41.356

40.065

2100

324.624

329.060

68.927

67.955

291.802

296.700

39.056

38.139

5100

360.183

363.698

189.672

185.545

322.992

327.317

41.435

40.084

2200

326.443

330.835

72.837

71.772

293.335

298.212

39.136

38.193

5200

360.988

364.476

193.819

189.554

323.715

328.024

41.514

40.095

2300

328.184

332.534

76.755

75.594

294.813

299.667

39.216

38.250

5300

361.779

365.240

197.975

193.564

324.426

328.719

41.593

40.100

2400

329.855

334.163

80.680

79.422

296.238

301.071

39.296

38.310

5400

362.558

365.990

202.138

197.574

325.125

329.402

41.672

40.099

2500

331.461

335.728

84.614

83.256

297.615

302.426

39.376

38.373

5500

363.323

366.726

206.309

201.584

325.812

330.074

41.751

40.091

2600

333.007

337.235

88.556

87.097

298.947

303.736

39.456

38.439

5600

364.076

367.448

210.488

205.592

326.489

330.735

41.830

40.078

2700

334.497

338.687

92.505

90.944

300.236

305.004

39.535

38.508

5700

364.817

368.157

214.675

209.599

327.155

331.385

41.909

40.058

2800

335.937

340.088

96.463

94.798

301.486

306.232

39.615

38.581

5800

365.547

368.853

218.870

213.603

327.810

332.025

41.988

40.032

2900

337.328

341.444

100.428

98.660

302.698

307.423

39.694

38.657

5900

366.265

369.537

223.073

217.605

328.456

332.655

42.067

40.000

3000

338.675

342.756

104.401

102.530

303.875

308.579

39.774

38.735

6000

366.973

370.209

227.283

221.603

329.092

333.276

42.146

39.963

  1. RGFEa: Reduced Gibbs free energy; CPHCb: Constant pressure heat capacity.