Answer:
1.39 atm
Step-by-step explanation:
First find combined gas law equation. Then rearrange variable to match problem. You should get...
P2 = P1T2/T1
Next, change celcius temperatures to kelvin. Do this by adding 273 K (standard STP). Then fill in the numbers to go along with equation. You should get...
P2 = 1.22 atm x 455 K / 398 K = 1.39 atm
- If you need further explanation or more help please let me know. I would be glad to offer more of an explanation or help on other problems.