请问在298.15K时所有物质的标准摩尔熵值都大于零吗?

请问在298.15K时所有物质的标准摩尔熵值都大于零吗?
请问在298.15K时所有物质的标准摩尔熵值都大于零吗?

请问在298.15K时所有物质的标准摩尔熵值都大于零吗?
对呀~因为按照热力学第三定律,只有0K的完美晶体其熵才可能为0,而又不可能比0还小,故常温下,均大于零.可以认为,熵值为零是不存在滴.

YES

National Day
It is known to everyone:Oct,1st is our National Day.At this day I went to street and saw something.Now I will tell you!
At 8:00 I got up and went bus station with my mother .O m...

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National Day
It is known to everyone:Oct,1st is our National Day.At this day I went to street and saw something.Now I will tell you!
At 8:00 I got up and went bus station with my mother .O my god there were so many people!With difficult we got up the bus and felt very crowed.The traffic was so bad too!I cost nearly 1 hour that we arrived the center of street.What were worse there were even more people!In my opinion it was not very interesting to come out at this day!Nest time I prefer to stay at home and study!
National Day
It is known to everyone:Oct,1st is our National Day.At this day I went to street and saw something.Now I will tell you!
At 8:00 I got up and went bus station with my mother .O my god there were so many people!With difficult we got up the bus and felt very crowed.The traffic was so bad too!I cost nearly 1 hour that we arrived the center of street.What were worse there were even more people!In my opinion it was not very interesting to come out at this day!Nest time I prefer to stay at home and study!
The National Day
It is the National Day. The week-long holiday just begins. No one needs to work now. Look, Carl's father is reading a newspaper, his mother is washing clothes, and Carl himself is listening to the radio. It is broadcasting the weather forecast. He wants to make sure what the weather is like in the afternoon, ff it is a sunny day, he is going to play football with his friends.
National Day
It is known to everyone:Oct,1st is our National Day.At this day I went to street and saw something.Now I will tell you!
At 8:00 I got up and went bus station with my mother .O my god there were so many people!With difficult we got up the bus and felt very crowed.The traffic was so bad too!I cost nearly 1 hour that we arrived the center of street.What were worse there were even more people!In my opinion it was not very interesting to come out at this day!Nest time I prefer to stay at home and study!
112回答者： Y坏脾气 - 实习生 一级 2008-10-5 13:04
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其他回答 共 1 条
National Day
It is known to everyone:Oct,1st is our National Day.At this day I went to street and saw something.Now I will tell you!
At 8:00 I got up and went bus station with my mother .O my god there were so many people!With difficult we got up the bus and felt very crowed.The traffic was so bad too!I cost nearly 1 hour that we arrived the center of street.What were worse there were even more people!In my opinion it was not very interesting to come out at this day!Nest time I prefer to stay at home and study!
回答者： asd950615 - 见习魔法师 二级 2008-10-8 20:12
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