Answer:
The answer to your question is 3.- 0.67 l 4.- 0.72 atm
Step-by-step explanation:
Data
Volume 1 = 2 l
Pressure 1 = 1 atm
Volume 2 = ?
Pressure 2 = 3 atm
Process
To solve this problem use Boyle's law.
P1V1 = P2V2
-Solve for V2
V2 = P1V1 / P2
-Substitution
V2 = (1)(2) / 3
-Simplification
V2 = 2/3
-Result
V2 = 0.67 l
4.-
Volume 1 = 12 l
Pressure 1 = 0.9 atm
Volume 2 = 15 l
Pressure 2 = ?
Process
To solve this problem use Boyle's law
P1V1 = P2V2
-Solve for P2
P2 = P1V1 / V2
-Substitution
P2 = (0.9 x 12) / 15
-Simplification
P2 = 10.8 / 15
-Result
P2 = 0.72 atm