| Temperature [K] | cp [kJ/kgK] |
|---|---|
| 175 | 1.85 |
| 200 | 1.851 |
| 225 | 1.852 |
| 250 | 1.855 |
| 275 | 1.859 |
| 300 | 1.864 |
| 325 | 1.871 |
| 350 | 1.88 |
| 375 | 1.89 |
| 400 | 1.901 |
| 450 | 1.926 |
| 500 | 1.954 |
| 550 | 1.984 |
| 600 | 2.015 |
| 650 | 2.047 |
| 700 | 2.08 |
| 750 | 2.113 |
| 800 | 2.147 |
| 850 | 2.182 |
| 900 | 2.217 |
| 950 | 2.252 |
| 1000 | 2.288 |
| 1050 | 2.323 |
| 1100 | 2.358 |
| 1150 | 2.392 |
| 1200 | 2.425 |
| 1250 | 2.458 |
| 1300 | 2.49 |
| 1350 | 2.521 |
| 1400 | 2.552 |
| 1500 | 2.609 |
| 1600 | 2.662 |
| 1700 | 2.711 |
| 1800 | 2.756 |
| 1900 | 2.798 |
| 2000 | 2.836 |
| 2100 | 2.872 |
| 2200 | 2.904 |
| 2300 | 2.934 |
| 2400 | 2.962 |
| 2500 | 2.987 |
| 2600 | 3.011 |
| 2700 | 3.033 |
| 2800 | 3.053 |
| 2900 | 3.072 |
| 3000 | 3.09 |
| 3500 | 3.163 |
| 4000 | 3.217 |
| 4500 | 3.258 |
| 5000 | 3.292 |
| 5500 | 3.322 |
| 6000 | 3.35 |
Ref: https://www.engineeringtoolbox.com/water-vapor-d_979.html