资源化利用二氧化碳不仅可减少温室气体的排放，还可重新获得燃料或重要工业产品。<br/>（1）有科学家提出可利用FeO吸收和利用<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/58d3fbf666ad478798881d8e0c9037c0.gif" style="width: 55.4;height: 41.5;" width="55.4" height="41.5" />，相关热化学方程式如下：<br/><img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/02d125a2d2ff49c19d7776e417efbc08.gif" style="width: 688.5;height: 43.3;" width="688.5" height="43.3" /><br/>①上述反应中每生成1mol<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/cf50ba25c1a14fa78ef5704b6275b537.gif" style="width: 72.7;height: 41.5;" width="72.7" height="41.5" />，转移电子的物质的量为________mol。<br/>②已知：<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/b1d7315848ac412cb090b155b81b3d34.gif" style="width: 686.8;height: 43.3;" width="686.8" height="43.3" />，则反应：<br/><img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/21ab5dbf834a4d1f9eae0720389b4e9f.gif" style="width: 474.0;height: 41.5;" width="474.0" height="41.5" />的△H=________。<br/>（2）在一定条件下，二氧化碳转化为甲烷的反应如下：<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/6079dda89732425c816bbc34a3df1f61.gif" style="width: 484.4;height: 41.5;" width="484.4" height="41.5" /><br/>向一容积为2L的恒容密闭容器中充入一定量的<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/0eb223b3058142d5a423a9925476ce4b.gif" style="width: 112.5;height: 41.5;" width="112.5" height="41.5" />，在300℃时发生上述反应，达到平衡时各物质的浓度分别为<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/775d810c27074df7b0cbaf05a273a2bf.gif" style="width: 754.3;height: 43.3;" width="754.3" height="43.3" />。则300℃时上述反应的平衡常数K=________。200℃时该反应的平衡常数K=64.8，则该反应的△H________0（填“>’’或“（3）华盛顿大学的研究人员研究出一种方法，可实现水泥生产时<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/4e65a96b3ff2443c8db657d9cd68051b.gif" style="width: 55.4;height: 41.5;" width="55.4" height="41.5" />零排放，其基本原理如图所示：<br/><img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/28a29212b69f45f99c3943ca3ce3007c.jpg" style="width: 294.1;height: 214.5;" width="294.1" height="214.5" /><br/>①上述生产过程的能量转化方式是________。<br/>a.电能转化为化学能<br/>b.太阳能转化为电能<br/>c.太阳能转化为化学能<br/>d.化学能转化为电能<br/>②上述电解反应在温度小于 900℃时进行，碳酸钙先分解为CaO和<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/bd7cd22ec4c64d71b0d68b6676512f54.gif" style="width: 55.4;height: 41.5;" width="55.4" height="41.5" />，电解质为熔融碳酸钠，阴极反应式为<img src="https://develop-api.kaoshibao.com/question/h_image/1/pandora/img/question/15d17f5f850a40a3835dd140b44462c1.gif" style="width: 287.2;height: 43.3;" width="287.2" height="43.3" />，则阳极的电极反应式为________。