`T T1:{(V_1=8l),(p_1):}` $\xrightarrow{\text{T = const}}$ `T T2:{(V_2=2l),(p_2=p_1+300(kPa)):}`
ADĐL Bôi lơ - Ma ri ốt: `p_1.V_1=p_2.V_2`
`=>p_1.8=(p_1+300).2`
`=>p_1=100(k Pa)`
tham khảo link: https://hoc24.vn/cau-hoi/nen-khi-dang-nhiet-tu-the-tich-12-lit-den-8-lit-thi-ap-suat-tang-them-mot-luong-denta-p-48kpa-ap-suat-ban-dau-cua-khi-la.213737784970