Kí hiệu p" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">Pp và T" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">TT là áp suất và nhiệt độ ban đầu của khí. Khi hai pittông nằm cân bằng ta có: (p−p0).ΔS=mg" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">(P−P0).ΔS=mg(p−p0).ΔS=mgSuy ra: p=p0+\frac{mg}{\triangle S}=1,5(atm)(1)" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">P=P0+mgΔS=1,5(atm)(1)p=p0+mgΔS=1,5(atm)(1)Kí hiệu ΔT" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ΔTΔT là độ tăng nhiệt độ của khí; ΔV" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ΔVΔV là độ tăng thể tích khí khi pittông dịch chuyển lên trên (ΔT=ΔS.l)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">(ΔT=ΔS.l)(ΔT=ΔS.l), áp dụng phương trình trạng thái sau khi nung nóng khí:PV=nRT (1)p(V+ΔV)=R(T+ΔT)(3)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">p(V+ΔV)=R(T+ΔT)(3)P(V+ΔV)=nR(T+ΔT)với p" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">Pp được xác định bới (1)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">(1)(1)để các pittông cân bằng thì ta có: Suy ra: ΔT=p.ΔVR=p.ΔS.lR≈0,9(K)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ΔT=P.ΔVnR=P.ΔS.lnR=1,5\tfrac{10.10^{-2}.5.10^{-1}}{\frac{22,4.1}{273}}≈0,9(K)ΔT=p.ΔVR=p.ΔS.lR≈0,9(K)
Kí hiệu p" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">Pp và T" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">TT là áp suất và nhiệt độ ban đầu của khí. Khi hai pittông nằm cân bằng ta có: (p−p0).ΔS=mg" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">(P−P0).ΔS=mg(p−p0).ΔS=mgSuy ra: p=p0+mgS}=1,5(atm)(1)" role="presentation" style="display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">P=P0+mgΔS=1,5(atm)(1)p=p0+mgΔS=1,5(atm)(1)Kí hiệu ΔT" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ΔTΔT là độ tăng nhiệt độ của khí; ΔV" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ΔVΔV là độ tăng thể tích khí khi pittông dịch chuyển lên trên (ΔT=ΔS.l)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">(ΔT=ΔS.l)(ΔT=ΔS.l), áp dụng phương trình trạng thái sau khi nung nóng khí:PV=nRT (1)p(V+ΔV)=R(T+ΔT)(3)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">p(V+ΔV)=R(T+ΔT)(3)P(V+ΔV)=nR(T+ΔT)với p" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">Pp được xác định bới (1)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">(1)(1)để các pittông cân bằng thì ta có: Suy ra: ΔT=p.ΔVR=p.ΔS.lR≈0,9(K)" role="presentation" style="font-size: 13.696px; display: inline; line-height: normal; word-spacing: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">ΔT=P.ΔVnR=P.ΔS.lnR=1,5\tfrac{10.10^{-2}.5.10^{-1}}{\frac{22,4.1}{273}}≈0,9(K)ΔT=p.ΔVR=p.ΔS.lR≈0,9(K)