Answer:
608 L
Explanation:
Using Boyle's law equation as follows:
P1V1 = P2V2
Where;
P1 = initial pressure (atm)
P2 = final pressure (atm)
V1 = initial volume (L)
V2 = final volume (L)
According to the information provided in this question;
P1 = 1.00atm
P2 = 2.8atm
V1 = ?
V2 = 217L
Using P1V1 = P2V2
V1 = P2V2/P1
V1 = 2.8 × 217/1
V1 = 607.6/1
V1 = 607.6
The initial volume is 608 L