Answer:
We use old
Boyle's Law
,
P
V
=
k
,
where
k
is a
constan
And the utility of this law means that we could use non-standard units, if our units are consistent.
Given that
P
V
=
k
,
(temperature constant), it follows that...........
P
1
V
1
=
P
2
V
2
..........
We solve for
P
2
=
P
1
V
1
V
2
=
205
⋅
k
P
a
×
4.0
⋅
L
12.0
⋅
L
≅
68
⋅
k
P
a
Explanation: