chemistry is hard.. thermochemistry is worse

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partyman879

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#1 partyman879
Member since 2006 • 687 Posts
i need help on thermochemistry.. i have no clue what my teacher is talking about when shes like delta H and delta T and sepecific heat and etc.. someone explain..
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AirForceX

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#2 AirForceX
Member since 2004 • 2297 Posts
i need help on thermochemistry.. i have no clue what my teacher is talking about when shes like delta H and delta T and sepecific heat and etc.. someone explain..partyman879
We talking about specific heat capacity here?
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schoeffmaster

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#3 schoeffmaster
Member since 2005 • 10674 Posts
i am in Chemisty and i am still trying to figure out wtf is a significant value sorry but i cant help...
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partyman879

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#4 partyman879
Member since 2006 • 687 Posts
[QUOTE="partyman879"]i need help on thermochemistry.. i have no clue what my teacher is talking about when shes like delta H and delta T and sepecific heat and etc.. someone explain..AirForceX
We talking about specific heat capacity here?

uhh some weird stuff like that
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FragStains

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#5 FragStains
Member since 2003 • 20668 Posts
Delta, symbolized by a triangle, refers to the amount of change in something.
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AirForceX

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#6 AirForceX
Member since 2004 • 2297 Posts
i am in Chemisty and i am still trying to figure out wtf is a significant value sorry but i cant help...schoeffmaster
Are you kidding me? Thats probably one of the easiest parts of Chem...
[QUOTE="AirForceX"][QUOTE="partyman879"]i need help on thermochemistry.. i have no clue what my teacher is talking about when shes like delta H and delta T and sepecific heat and etc.. someone explain..partyman879
We talking about specific heat capacity here?

uhh some weird stuff like that

Tell me what you already know.
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Solaris222002

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#7 Solaris222002
Member since 2004 • 979 Posts
Yea chemistry wasnt fun, thats why I just started mixing chemicals together and make it fun :P (seriously did)...sorry I cant help ya chemistry was a problem for me to.
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partyman879

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#8 partyman879
Member since 2006 • 687 Posts
i am in Chemisty and i am still trying to figure out wtf is a significant value sorry but i cant help...schoeffmaster
if you cant do that... your going to fail every part of chemistry that has math in it.. unless its a definte number
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AirForceX

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#9 AirForceX
Member since 2004 • 2297 Posts
Well, in a nutshell, specific heat capacity is the amount of heat/ energy required to raise the temperature of an object by one degree. Now, answer this, which of the following would have a higher heat capacity?: wood, metal, water, or candy.
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schoeffmaster

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#10 schoeffmaster
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[QUOTE="schoeffmaster"]i am in Chemisty and i am still trying to figure out wtf is a significant value sorry but i cant help...partyman879
if you cant do that... your going to fail every part of chemistry that has math in it.. unless its a definte number

I just got significant figures today so i will try to figure it out...I like scientific notation better...lol...
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partyman879

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#11 partyman879
Member since 2006 • 687 Posts
[QUOTE="AirForceX"]Well, in a nutshell, specific heat capacity is the amount of heat/ energy required to raise the temperature of an object by one degree. Now, answer this, which of the following would have a higher heat capacity?: wood, metal, water, or candy.

uhhhh.... water?
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AirForceX

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#12 AirForceX
Member since 2004 • 2297 Posts
[QUOTE="partyman879"][QUOTE="AirForceX"]Well, in a nutshell, specific heat capacity is the amount of heat/ energy required to raise the temperature of an object by one degree. Now, answer this, which of the following would have a higher heat capacity?: wood, metal, water, or candy.

uhhhh.... water?

Yep, because, if you haven't noticed, it takes water longer than any of the above to heat it. Thats because it contains a higher specific heat capacity. As for the equations, I'm a lazy bastard. Go to wikipedia and wiki "Specific Heat Capacity" and it'll answer everything. Did that help at all?
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partyman879

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#13 partyman879
Member since 2006 • 687 Posts
eh a bit.. i still don't really get it.. i'll just talk to my teacher tomorrow
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AirForceX

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#14 AirForceX
Member since 2004 • 2297 Posts
No, seriously. Look it up on wikipedia. It'll really help.
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soulless4now

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#15 soulless4now
Member since 2003 • 41388 Posts
I hate chemistry. I don't know how I survived that class.
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AirForceX

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#16 AirForceX
Member since 2004 • 2297 Posts
Honestly, I despise chemistry.
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AncientNecro

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#17 AncientNecro
Member since 2003 • 4957 Posts

q = m C delta T

"q" is the energy required to make the temperature change occur (in Joules)

"m" is your mass (in Grams)

"C" is the specific heat of the substance (in Joules per Gram degrees Celcius or J/GC)

"delta T" is the change in temperature (in Celcius)

hope it helps...

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194197844077667059316682358889

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#18 194197844077667059316682358889
Member since 2003 • 49173 Posts
Chemistry is awful, because its almost all memorization
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mynameisjosh657

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#19 mynameisjosh657
Member since 2004 • 1285 Posts

Nuclear Chemistry is pretty fascinating, though. Changing Platinum to Gold by Beta emmission... awesome.

As for specific heat...

H=SH X Mass X (T1-T2)

I Believe that's correct, but it's off the top of my head, so idk. I don't think it's right.

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RoflSponge

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#20 RoflSponge
Member since 2007 • 3155 Posts
Oh god..how i hate Chemistry. I find Physics the easiest even though its meant to be the hardest...