單項(xiàng)選擇題

氣相反應(yīng)N2 + 3H22NH3進(jìn)料時無惰性氣體,N2與H2以2∶3摩爾比進(jìn)料,則膨脹因δH2 =()

A.–1
B.–2/3
C.2/3
D.1


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