Ⅰ．某一反应体系有反应物和生成物共五种物质：O₂、H₂CrO₄、Cr（OH）₃、H₂O、H₂O₂．已知该反应中H₂O₂只发生如下过程：H₂O₂→O₂．

（1）该反应中的还原剂是______．

（2）该反应中，发生还原反应的过程是______→______．

（3）该反应中氧化剂与还原剂物质的量之比为______．

（4）如反应转移了0.3mol电子，则产生的气体在标准状况下体积为______．

Ⅱ．已知：Fe₂O₃（s）+3CO（g）=2Fe（s）+3CO₂（g）△H=-24.8kJ/mol

3Fe₂O₃（s）+CO（g）=2Fe₃O₄（s）+CO₂（g）△H=-47.2kJ/mol

Fe₃O₄（s）+CO（g）=3FeO（s）+CO₂（g）△H=+640.5kJ/mol

请运用盖斯定律写出CO气体还原FeO固体得到Fe固体和CO₂气体的热化学反应方程式：______．

______ is practiced to some extent by the adherents of every religion. It often requires abstinence from food, drink, or sexual activity, as in fasting or celibacy and it may also require physical pain or discomfort, such as endurance of extreme heat or cold or self-punishment.

A．Extravagance

B．Opulence

C．Deterioration

D．Asceticism