推 insominia:十分感謝! 203.64.48.9 07/13 15:12
※ 引述《insominia (劣根性大學生K氏)》之銘言：
: One mole of a liquid is vaporized at its boiling point, 65℃ and 1.00 atm.
: △Hvap for the liquid is 43.8kJ/mol at 65℃.
: 1. Calculate w.(in the unit of J)
W = -PΔV = -(Δn)RT
= -8.31*(273+65)*1 = -2810 (J)
: 2. Calculate △E.(in the unit of kJ)
H = E + PV , ΔH = ΔE + PΔV + VΔP
定壓下ΔP = 0 , ΔH = ΔE + PΔV
ΔE = ΔH - PΔV = 43.8*1 - 2.81 = 41.0 (kJ)
: 想了半天想不出頭緒
: 想請教一下板上的各位 謝謝
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