單項(xiàng)選擇題

已知:
(1)C(s)+O2(g)→CO(g),(1)=-110.5kJ·mol-1
(2)C(s)+O2(g)→CO2(g),(2)=-393.5kJ·mol-1
則在標(biāo)準(zhǔn)狀態(tài)下25℃時(shí),1000L的CO的發(fā)熱量是()

A.504kJ·mol-1
B.383kJ·mol-1
C.22500kJ·mol-1
D.1.16×104kJ·mol-1


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2.單項(xiàng)選擇題下列各反應(yīng)的(298)值中,恰為化合物標(biāo)準(zhǔn)摩爾生成焓的是()

A.2H(g)+O2(g)→H2O(l)
B.2H2(g)+O2(g)→2H2O(l)
C.N2(g)+3H2(g)→2NH3(g)
D.N2(g)+H2(g)→NH3(g)

3.單項(xiàng)選擇題在下列反應(yīng)中,Qp=Qv的反應(yīng)為()

A.CaCO3(s)→CaO(s)+CO2(g)
B.N2(g)+3H2(g)→2NH3(g)
C.C(s)+O2(g)→CO2(g)
D.2H2(g)+O2(g)→2H2O(l)