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Clearnote
Q&A
Senior High
Chemistry
求解第二題🙏🏻
Chemistry
Senior High
6 monthsago
妍
求解第二題🙏🏻
LOK» 精選範例 15 根據下表中各反應之標準反應熱回答下列問題: 531杯 反應 ① C2H6(g) C2H2(g)+2H2(g) 2 C2H2(g) →2 C(s) + H2(g) ⑤ 2H2(g)+O2(g)→2H2O() 4 C(s) +O2(g) AH°(kJ/mol) 302 -227 -572 103. CO2(g) -394 (1)乙烷和乙炔之標準莫耳燃燒熱各為多少kJ/mol? (2)某乙烷和乙炔混合氣體之標準莫耳燃燒熱為-1409kJ,此混合氣體中乙烷 所佔的百分比為何? (1)-1571kJ/mol,-1301kJ/mol;(2) 40% (2) (1)个CaHo燃燒熱為x. GoHo為41C2H6+202 2000+30 X+788+286=-227 x=-1301 4+1301+572=302 4=4511 041-4571 Cath + 50 2002 +1 th 041=1301 144 LE 下
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