Re: 請問一題關於熱力學的問題

看板Chemistry作者reckson1017 (GOD)時間18年前 (2006/02/09 00:36)推噓2(2推 0噓 1→)

留言3則, 3人參與討論串2/2 (看更多)

※ 引述《GOPOL (爬不起來阿!!)》之銘言： : in the plot of enthalpy VS temperature for metals A and B : if the slope of A less than B which of the following is true : (A)the entropy of A is less than B : (B)melting point of metal A is higher than that of metal B : (C)more heat is needed to heat up metal B than A when the equal : moles of A and B are used : (D)heat will flow from B to A when they are in direct contact : 請化學高手指教一下這一題不太懂氣體定容狀態 dU=TdS-PdV dS=dU/T+ P/T dV dS=Cv/T dT + R/V dV 因為題目是金屬定壓 dH=TdS+VdP dS=dH/T -V/TdP dS=Cp/T dT-R/P dP 考慮斜率 H&T關係 dH/dT=CpdT/dT=Cp -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 203.67.78.143

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AppleAmily

02/09 14:17, , 1^F

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shok

02/09 22:00, , 2^F

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reckson1017

02/10 00:18, , 3^F

02/10 00:18, 3^F