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 [分享]地狱是放热还是吸热? 请看大学生的推导. 需要物理知识哦! |
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Rickshaw
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[个人文集]
头衔: 海归列兵
声望: 教授
性别: 
加入时间: 2006/05/29
文章: 1715
来自: USA, China
海归分: 136
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作者：Rickshaw 在 海归茶馆 发贴, 来自【海归网】 http://www.haiguinet.com
If you haven't already seen this....
The following is an actual question given on
a University of Washington chemistry midterm.
The answer by one student was so "profound"
that the professor shared it with colleagues
via the Internet, which is of course, why we
now have the pleasure of enjoying it as well.
Bonus Question: Is Hell exothermic (gives off
heat) or endothermic (absorbs heat)?
Most of the students wrote proofs of their
beliefs using Boyle's Law, (gas cools off when
it expands and heats up when it is compressed)
or some variant.
One student, however, wrote the following:
First, we need to know how the mass of Hell
is changing in time. So we need to know the
rate that souls are moving into Hell and the
rate they are leaving.
I think that we can safely assume that once
a soul gets to Hell, it will not leave.
Therefore, no souls are leaving.
As for how many souls are entering Hell, lets
look at the different religions that exist in
the world today. Some of these religions state
that if you are not a member of their religion
you will go to Hell. Since there are more than
one of these religions and since people do not
belong to more than one religion, we can
project that all souls go to Hell. With birth
and death rates as they are, we can expect
the number of souls in Hell to increase exponentially.
Now, we look at the rate of change of the
volume in Hell because Boyle's Law states that
in order for the temperature and pressure in Hell
to stay the same, the volume of Hell has to expand
proportionately as souls are added.
This gives two possibilities:
1. If Hell is expanding at a slower rate than
the rate at which souls enter Hell, then the
temperature and pressure in Hell will increase until
all Hell breaks loose.
2. Of course, if Hell is expanding at a rate
faster than the increase of souls in Hell, then
the temperature and pressure will drop until Hell
freezes over. So which is it?
If we accept the postulate given to me by Ms.Teresa
Banyan during my freshman year, "...that it will
be a cold day in Hell before I sleep with you.",
and take into account the fact that I still have
not succeeded in having sexual relations with her,
then #2 cannot be true, and thus I am sure that
Hell is exothermic and will not freeze.
The student received the only "A" given.
作者：Rickshaw 在 海归茶馆 发贴, 来自【海归网】 http://www.haiguinet.com
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 [分享]地狱是放热还是吸热? 请看大学生的推导. 需要物理知识哦! -- Rickshaw - (2496 Byte) 2006-6-24 周六, 09:40 (1231 reads) - 无神论者的概率论 -- 筋斗云 - (442 Byte) 2006-6-24 周六, 14:35 (223 reads)
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