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物體受熱時溫度變化時,原長度的金屬棒長度增長的現象稱為線膨脹,其中α、β、γ分別為線膨脹、面膨脹、體膨脹係數,請問線膨脹公式為何?
L=Lo+α⋅Lo⋅ΔTL=L_o+\alpha\cdot L_o\cdot\Delta TL=Lo+α⋅Lo⋅ΔT
L=α⋅Lo⋅ΔTL=\alpha\cdot L_o\cdot\Delta TL=α⋅Lo⋅ΔT
L=β⋅Lo⋅ΔTL=\beta\cdot L_o\cdot\Delta TL=β⋅Lo⋅ΔT
L=Lo(1+β⋅ΔT)L=L_o\left(1+\beta\cdot\Delta T\right)L=Lo(1+β⋅ΔT)
L=Lo+γ⋅Lo⋅ΔTL=L_o+\gamma\cdot L_o\cdot\Delta TL=Lo+γ⋅Lo⋅ΔT
請問方均根速率的公式為何?(當時溫度為T、壓力為P、體積為V、每個氣體分子質量為m、氣體分子量為、氣體密度為 )
3kTMo\sqrt{\frac{3kT}{M_o}}Mo3kT
3kTm\sqrt{\frac{3kT}{_m}}m3kT
3kTρ\sqrt{\frac{3kT}{\rho}}ρ3kT
3kTP\sqrt{\frac{3kT}{P}}P3kT
3Vρ\sqrt{\frac{3V}{\rho}}ρ3V
熱力學第一定律的其數學表示法為何?
ΔU=ΔW+ΔQ\Delta U=\Delta W+\Delta QΔU=ΔW+ΔQ
ΔQ=ΔU+ΔW\Delta Q=\Delta U+\Delta WΔQ=ΔU+ΔW
ΔW=ΔU+ΔQ\Delta W=\Delta U+\Delta QΔW=ΔU+ΔQ
ΔU=ΔQ+PΔT\Delta U=\Delta Q+P\Delta TΔU=ΔQ+PΔT
ΔU=ΔQ+PΔV\Delta U=\Delta Q+P\Delta VΔU=ΔQ+PΔV
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