Answer:
1.0 atm
Step-by-step explanation:
The combined gas law:
P1V1/T1 = P2V2/T2
V1 = 1.0 ml
P1 = 3.0 atm
Neither T1 not T2 are specified. We'll assume they are the same (equal): T1 = T2.
We want P2: P2 = P1(V1/V2)(T2/T1)
P2 = (3.0 atm)*(1/0ml/3.0ml)(T1/T1)
P2 = 1.0 atm