41.化合物三氯矽烷(SiHCl3)在催化劑作用下發生下列反應:2SiHCl3(g) → SiH2Cl2(g) + SiCl4(g) △H=48 kJ/mol3SiH2Cl2(g) → SiH4(g) + 2SiHCl3(g) △H=-30 kJ/mol則反應 4SiHCl3(g) → SiH4(g) + 3SiCl4(g),△H 為多少 kJ/mol?
(A)+114
(B)+18
(C)-18
(D)-114
(A)+114
(B)+18
(C)-18
(D)-114
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統計: A(69), B(13), C(6), D(5), E(0) #3175237
統計: A(69), B(13), C(6), D(5), E(0) #3175237