推 yiso:1596篇我解過 參考一下 06/27 17:07
→ late2004:感謝!!! 我之前爬文的關鍵字弄不對沒爬到 謝謝你^^ 06/27 23:45
題目是這樣的(出自成大96化學系的普化)
you make 325g of a solid (mp:58度C,heat of fusion:345 J/g) and let it
melt in 755g of water. The water temperature decreases from its initial
temperature to 30度C. Calculate the initial temperature of the water.
請問這題該怎麼算= ="
我完全想不到該用什麼公式...
總覺得作考古題常讓自己很慌張....
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.216.174.25