0 . 5 1 1 . 5 2 2 . 5 3 3 . 5 4 4 . 5 5 5 . 5 6 6 . 5 7 7 . 5 8 8 . 5 9 9 . 5 100

1000

2000

3000

4000

5000

6000

7000

8000

9000

Gas P V T P V T PHe Ideal 2879.138 0.5 173.15 4541.938 0.5 273.15 6204.738

1439.569 1 173.15 2270.969 1 273.15 3102.369959.7127 1.5 173.15 1513.979 1.5 273.15 2068.246719.7846 2 173.15 1135.485 2 273.15 1551.185575.8276 2.5 173.15 908.3876 2.5 273.15 1240.948479.8564 3 173.15 756.9897 3 273.15 1034.123411.3055 3.5 173.15 648.8483 3.5 273.15 886.3912359.8923 4 173.15 567.7423 4 273.15 775.5923319.9042 4.5 173.15 504.6598 4.5 273.15 689.4154287.9138 5 173.15 454.1938 5 273.15 620.4738261.7398 5.5 173.15 412.9035 5.5 273.15 564.0671239.9282 6 173.15 378.4949 6 273.15 517.0615221.4722 6.5 173.15 349.3799 6.5 273.15 477.2876205.6527 7 173.15 324.4242 7 273.15 443.1956191.9425 7.5 173.15 302.7959 7.5 273.15 413.6492179.9461 8 173.15 283.8711 8 273.15 387.7961169.3611 8.5 173.15 267.1728 8.5 273.15 364.9846159.9521 9 173.15 252.3299 9 273.15 344.7077151.5336 9.5 173.15 239.0494 9.5 273.15 326.5652143.9569 10 173.15 227.0969 10 273.15 310.2369

He VDW 2880.493 0.5 173.15 4544.084 0.5 273.15 6207.6741439.908 1 173.15 2271.505 1 273.15 3103.103959.8632 1.5 173.15 1514.218 1.5 273.15 2068.572719.8692 2 173.15 1135.619 2 273.15 1551.368575.8818 2.5 173.15 908.4734 2.5 273.15 1241.065

479.894 3 173.15 757.0493 3 273.15 1034.205411.3331 3.5 173.15 648.8921 3.5 273.15 886.4511359.9134 4 173.15 567.7758 4 273.15 775.6381

319.921 4.5 173.15 504.6863 4.5 273.15 689.4516287.9274 5 173.15 454.2153 5 273.15 620.5032

261.751 5.5 173.15 412.9212 5.5 273.15 564.0914239.9376 6 173.15 378.5097 6 273.15 517.0819221.4802 6.5 173.15 349.3926 6.5 273.15 477.3049205.6596 7 173.15 324.4351 7 273.15 443.2106191.9486 7.5 173.15 302.8054 7.5 273.15 413.6623179.9514 8 173.15 283.8795 8 273.15 387.8076169.3658 8.5 173.15 267.1803 8.5 273.15 364.9948159.9563 9 173.15 252.3365 9 273.15 344.7167151.5373 9.5 173.15 239.0553 9.5 273.15 326.5733143.9603 10 173.15 227.1023 10 273.15 310.2442

V T P V T0.5 373.15 7867.538 0.5 473.15

1 373.15 3933.769 1 473.151.5 373.15 2622.513 1.5 473.15

2 373.15 1966.885 2 473.152.5 373.15 1573.508 2.5 473.15

3 373.15 1311.256 3 473.153.5 373.15 1123.934 3.5 473.15

4 373.15 983.4423 4 473.154.5 373.15 874.1709 4.5 473.15

5 373.15 786.7538 5 473.155.5 373.15 715.2307 5.5 473.15

6 373.15 655.6282 6 473.156.5 373.15 605.1952 6.5 473.15

7 373.15 561.967 7 473.157.5 373.15 524.5025 7.5 473.15

8 373.15 491.7211 8 473.158.5 373.15 462.7964 8.5 473.15

9 373.15 437.0855 9 473.159.5 373.15 414.081 9.5 473.1510 373.15 393.3769 10 473.15

0.5 373.15 7871.265 0.5 473.151 373.15 3934.701 1 473.15

1.5 373.15 2622.927 1.5 473.152 373.15 1967.117 2 473.15

2.5 373.15 1573.657 2.5 473.153 373.15 1311.36 3 473.15

3.5 373.15 1124.01 3.5 473.154 373.15 983.5005 4 473.15

4.5 373.15 874.2169 4.5 473.155 373.15 786.7911 5 473.15

5.5 373.15 715.2615 5.5 473.156 373.15 655.6541 6 473.15

6.5 373.15 605.2173 6.5 473.157 373.15 561.986 7 473.15

7.5 373.15 524.5191 7.5 473.158 373.15 491.7357 8 473.15

8.5 373.15 462.8093 8.5 473.159 373.15 437.097 9 473.15

9.5 373.15 414.0913 9.5 473.1510 373.15 393.3862 10 473.15

VDW Constant a b0.00346 0.000238