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Table 2
Molecular weight (M), heat capacity (cp), and molecular heat capacity (cp,molec) for different background gases (Gas), where cp,molec = cp × M.
| Gas | M(g mol−1) | cp (J g−1 K−1) | cp,molec (J mol−1 K−1) |
|---|---|---|---|
| He | 4.003 | 5.196 | 20.80 |
| H2 | 2.016 | 14.23 | 28.69 |
| N2 | 28.02 | 1.037 | 28.02 |
| O2 | 31.99 | 0.916 | 29.30 |
| CO2 | 44.01 | 0.820 | 36.09 |
Notes. The heat capacity values are taken at 0°C and 1 bar from Pierrehumbert (2010).
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