英语周报牛津2022高一答案

英语周报牛津2022高一答案

19.(12分)(1)4NO2+4N2O4+3O2+6H2O=12HNO(2分)(2)-55.3(2分)(3)6%(2分)2945.3(2分)2分)③H(2分)【解析】(1)NO2和N2O4以物质的量之比1:1与O2和H2O恰好完全反应,化学方程式为4NO2+4N2O4+3O2+6H2O=12HNO3。(2)根据盖斯定律,I×2-Ⅱ得,2NO2(g)N2O4(g)△H=-4.4kJ·mol153.1kJ·mol-1=-55.3kJ·mol-1(3)①设起始时NO2(g)的物质的量为nmol,反应的物质的量为2xmol,根据三段式2NO2(g)=N2O4(g)起始(mol):n0反应(mol):2x平衡(mol):n-2xn2x+x97,解得x=3,NO2的转化率为则2m×100%=6%;平衡时n(NO2)=(n-2×n mmo=47nnoI, n100m,则p(NO2)=97P(NO2)×971Pa,p(N2O)=7×97kPa,Kp=p(N2O)2945.3kPa②B点压强大于E点,压强增大,化学反应速率加快,则v(B)>v(E)。③t2时刻移动活塞压强迅速增大,说明针筒内体积缩小,保持活塞位置木变后,平衡正向移动,混合气氵的物质的量逐渐减小,根据M=m可知,E、F、G、H四点中对应气体的平均相对分子质量最大的点氵为H

英语周报牛津2022高一答案

第二节书面表aiting for you to explore. Besides, the exceptional PekingDear JackOpera performances there are also whatam so pleased to learn that you are to spertimerecommend you stay in Beijing, the capital and cul-cerelytural center of China. The city enjoys a high reputation forits abundance of ancient architecture, which represents thetraditional local lifestyles. And there

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英语周报牛津2022高一答案

19.(12分)(1)4NO2+4N2O4+3O2+6H2O=12HNO(2分)(2)-55.3(2分)(3)6%(2分)2945.3(2分)2分)③H(2分)【解析】(1)NO2和N2O4以物質的量之比1:1與O2和H2O恰好完全反應,化學方程式為4NO2+4N2O4+3O2+6H2O=12HNO3。(2)根據蓋斯定律,I×2-Ⅱ得,2NO2(g)N2O4(g)△H=-4.4kJ·mol153.1kJ·mol-1=-55.3kJ·mol-1(3)①設起始時NO2(g)的物質的量為nmol,反應的物質的量為2xmol,根據三段式2NO2(g)=N2O4(g)起始(mol):n0反應(mol):2x平衡(mol):n-2xn2x+x97,解得x=3,NO2的轉化率為則2m×100%=6%;平衡時n(NO2)=(n-2×n mmo=47nnoI, n100m,則p(NO2)=97P(NO2)×971Pa,p(N2O)=7×97kPa,Kp=p(N2O)2945.3kPa②B點壓強大於E點,壓強增大,化學反應速率加快,則v(B)>v(E)。③t2時刻移動活塞壓強迅速增大,說明針筒內體積縮小,保持活塞位置木變後,平衡正向移動,混合氣氵的物質的量逐漸減小,根據M=m可知,E、F、G、H四點中對應氣體的平均相對分子質量最大的點氵為H

第二節書面表aiting for you to explore. Besides, the exceptional PekingDear JackOpera performances there are also whatam so pleased to learn that you are to spertimerecommend you stay in Beijing, the capital and cul-cerelytural center of China. The city enjoys a high reputation forits abundance of ancient architecture, which represents thetraditional local lifestyles. And there

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