In: Chemistry
The table below gives the temperature and pressure of the triple point for five different substances.
| Substance | Temperature (K) | Pressure (atm) | 
| Xe | 161 | 0.80 | 
| UF6 | 337 | 1.50 | 
| I2 | 387 | 0.12 | 
| CO | 68 | 0.15 | 
On heating from low temperature at 1 atm of pressure which substance is most likely to sublime rather than melt?
| I2 | |
| Xe | |
| CO | |
| UF6 |