皮皮学，免费搜题
登录
搜题
【简答题】
已知CH4(g)+2O2(g)=CO2(g)+2H2O(g)反应的热力学数据：△rHΘm(298K)=-802．3 kJmol-1，△fHΘm(CO2，298K)=-393．5KJmol-1，△fHΘm(H2O，g，298K)=-241．82KJmol-1，求△fHΘm(CH4，g，298K)=?
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Soon after the two hen birds had arrived______.
A.
they settled down with the male
B.
the male drove one of them off
C.
they make unmusical cries like the male
D.
they lost interest in the male
【简答题】如图2.1所示的内燃机结构示意图,活塞1与机架4组成__________ 副;连杆2与曲柄3组成__________ 副;活塞1与连杆2组成__________副。
【简答题】按照有效数字运算规则,计算下列结果 7.9936÷0.9967-5.02
【单选题】Scarcely had they settled in their seats in the cinema______the film began.
A.
when
B.
than
C.
as
D.
until
相关题目：
参考解析：
知识点：
题目纠错 0
发布
