Vf = 2 Vi
Tf = 2 Ti
nf = 2 ni
Use combined gas law:
Pi*Vi / Ti*ni = Pf*Vf / Tf*nf
Pi*Vi / Ti*ni = Pf*2Vi / 2Ti*2ni
Pi = Pf*2 / (2*2)
Pi = Pf/2
Pf = 2Pi
=2 Po
Answer: 2Po
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