智慧上进·2023届高考总复习·单元滚动创新卷·生物(十六)16答案

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智慧上进·2023届高考总复习·单元滚动创新卷·生物(十六)16答案

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【答案】(1)CH4(g)+2S02(g)=CO2(g)+2S(g)+2H20(g)△H=+352kJ·mol1(3分)(2)5C0(g)+I205(s)—5C02(g)+I2(s)△H=-1377kJ·mol-1(3分)(3)-746.5(2分)(42a+6)x0.15(2分)发话下羊中灰的面乐蹈心订法资器部出4【解析】(1)根据图像可知:①CH4(g)+2O2(g)一CO2(g)十2H2O(g)△H=E1-E2=126kJ·mol1928kJ·mol-1=-802kJ·mol-1;②S(g)+O2(g)一S02(g)△H=-577kJ·mol-。根据盖斯定律可知①-②X2即得到CH4(g)+2S02(g)-CO2(g)+2S(g)+2H2O(g)△H=+352kJ·mol1(2)已知反应①212(s)+5O2(g)—21205(s)、△H=-76kJ·mol-1;反应②2C0(g)+02(g)-2C02(g)△H=-56·mo,根据盖斯定体,反应①×(-+②×号得到5C0(g)+10,()—5C0,(g)+1(s)5△H=-1377kJ·mol。(3)将反应编号,N2(g)+O2(g)-2N0(g)△H=+180.5kJ·mol1①共中子2C(s)+O2(g)=2C0(g)△H=-221.0kJ·molT1②C02(g)C(s)+O2(g)△H=+393.5kJ·mol-1③应用盖斯定律,由-(①+②+③X2)得反应2NO(g)+2CO(g)一N2(g)+2CO2(g)的△H=-746.5kJ·mol-1。(2)已知反应①212(s)+5O2(g)—212O5(s)△H=-76kJ·mol-1;反应②2C0(g)+O2(g)—2C02(g)△H=-566kJ·mol-1,根据盖斯定律,反应①×(-。)+②×号得到5C0(g)+1,0,(s)-5C02(g)+12(s)△H=-1377kJ·mol1.(3)将反应编号,N2(g)十O2(g)-2N0(g)△H=+180.5kJ·mol1①2C(s)十O2(g)—2C0(g)△H=-221.0kJ·mol1②C02(g)-C(s)+O2(g)△H=+393.5kJ·mol-1③应用盖斯定律,由-(①+②+③X2)得反应2NO(g)+2C0(g)一N2(g)+2CO2(g)的△H=-746.5kJ·mol-1。(4)已知反应①为C0(g)+NO2(g)一NO(g)+CO2(g)△H=-akJ·mol-1(a>0),反应②为2CO(g)+2NO(g)一N2(g)+2CO2(g)△H=-bkJ·mol1(b>0),根据盖斯定律①X2+②得4C0(g)十2NO2(g)一N2(g)+4C02(g)△H=-(2a+b)kJ·mol1,4molC0(g)反应放热(2a+b)k,标准状况下3.36LC0的物质的量是0.15mol,放出的热量为2a+b)X0.15kJ。(ps0H(p6)OH4

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【答案】B【解析】根据盖斯定律,③式=①式×2+②2△H1+△H23,所以△H=3”