题目

25℃、101kPa时，有以下能量转化图，下列说法不正确的是（ ）A. 转化Ⅱ的热化学方程式2CO(g)+O2(g)=2CO2(g) △H=-282.9 kJ·mol-1B. 相同条件下,1mol C(s )和0.5 mol O2(g)总能量高于1mol CO(g)的能量C. 由C→CO 的热化学方程式2C(s)+O2(g)=2CO(g) △H=-221.2 kJ·mol-1D. CO2(g)分解为C(s)和O2(g)是吸热反应 答案：【答案】A【解析】A、根据能量转化图，转化II的热化学反应方程式为CO(g)＋1/2O2(g)=CO2(g) △H=－282.9kJ·mol－1或者2CO(g)＋O2(g)=2CO2(g) △H=－282.9×2kJ·mol－1=－565.8kJ·mol－1，故A说法错误；B、C和氧气反应生成CO，此反应属于放热反应，因此相同条件下，1molC(s)和0.5molO2(g)总能量高于1molCO(g)的能量，故B说法正确；C阅读短文，补充句子。Jane White is an American girl. She is fifteen. She is a middle school student. Her father is Bill White and her mother is Joan White. Her brother，Bob，is a student，too. He is in a black coat and Jane is in a red sweater. 1. Jane White is ____________ American girl. 2. She is ____________ years old. 3. Her brother is a ____________. 4. Jane's sweater is ____________. 5. Bob's coat is ____________.