皮皮学，免费搜题
登录
搜题
【判断题】
一个绝热圆筒上有一个理想的 ( 无摩擦无重量的 ) 绝热活塞,其内有理想气体,内壁绕有电炉丝。当通电时气体就慢慢膨胀,因为这是个恒压过程, Q p =Δ H ,又因为是绝热体系,所以 Δ H =0。A.
正确
B.
错误
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】The grey building is the place where the workers live, and the white building is the place where the spare parts _____.
A.
are producing
B.
are produced
C.
produced
D.
being produced
【单选题】The experience gained while building the system had worldwide influence on the building of highways.
A.
Y
B.
N
C.
NG
【简答题】They lingered long over his letter.
【简答题】今有①盐酸、②醋酸、③硫酸三种稀溶液，用序号回答下列问题。 （1）若三种酸的物质的量浓度相等。 a．三种溶液中的c(H + )大小关系为__________________。 b．取等体积上述三种溶液，分别用同浓度的NaOH溶液完全中和，所需NaOH体积大小关系为__________________。 c．若取等质量Zn分别跟这三种溶液反应，使Zn恰好完全反应时，消耗三种酸的体积大小关系为____...
【单选题】The Empire State Building Turns 75 Empire State Building, the famous building in New York City is 75 years old. The ground was broken on Jan. 22nd, 1930. Workers dug a hole about 17 meters deep for th...
A.
Y
B.
N
C.
NG
【单选题】The example of the toy building shows that ______.
A.
well constructed building could resist an earthquake
B.
the destruction depends on an earthquake's strength
C.
ineffective instruments cause the destruction
D.
we should construct our building like a toy building
【简答题】Which floor of the building did the fire destroy? The ______ of the building.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
