Answer:
The answer to your question is  P2 = 0.78 atm
Explanation:
Data
Temperature 1 = T1 = 263°K         Temperature 2 = T2 = 298°K
Volume 1 = V1 = 24 L Â Â Â Â Â Â Â Â Â Â Â Â Â Â Volume 2 = V2 = 35 L
Pressure 1 = P1 = 1 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Pressure 2 = P2 = ?
Process
1.- To solve this problem use the Combined gas law
             P1V1/T1 = P2V2/T2
-Solve for P2
              P2 = P1V1T2 / T1V2
-Substitution
             P2 = (1)(24)(298) / (263)(35)
-Simplification
             P2 = 7152 / 9205
-Result
             P2 = 0.777
  or           P2 = 0.78 atm