已知化学键能:Si—Si:M KJ/mol O=O:N KJ/mol Si—O:Q KJ/mol,则Si (s) + O 2 (g) =SiO 2 (s); ΔH=( )
A.
—(4Q—2M—N)KJ/mol
B.
—(4Q—M—2N)KJ/mol
C.
—(2Q—M—2N)KJ/mol
D.
—(2Q—2M—N)KJ/mol
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