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Thread: Calorimetry Help

  1. #1 Calorimetry Help 
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    What is a calorimeter and how is the energy transferred?

    Can't find any information anywhere.


    My experiment is about finding the enthalpy of combustion of alcohols.
    Where would the energy conversions be there? and where would the energy be lost at times?

    Thank you.


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  3. #2  
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    Someone please please please help me! (


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  4. #3  
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    Calories are a measure of energy in the same way that joules are (correct me if I'm wrong). I believe you can measure the calories in an object by burning it and determining how much energy is released.

    The energy is in chemical form, and in the case of burning it is converted to heat and infrared radiation (light).
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

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  5. #4  
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    Not calories, calorimetry :P
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  6. #5  
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    http://en.wikipedia.org/wiki/Calorimetry

    Eh, similar. You are just dealing with different variables.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

    -Einstein

    http://boinc.berkeley.edu/download.php

    Use your computing strength for science!
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  7. #6  
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    A calorimeter is a container in which the ethanol would be burned. When the ethanol burns it releases heat. The heat is absorbed by the calorimeter and its temperature rises. By measuring the rise in temperature of the calorimeter, it is possible to calculate how much heat was released by burning the ethanol. To do this, it is necessary to know the thermal capacity of the calorimeter , that is, how much heat it must absorb to raise its temperature by 1 degree. (Calorimeters are usually insulated on the outside so that heat they absorb is not lost to the surroundings.)
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  8. #7  
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    How do you think the experiment could be made fair?
    But how how would the energy be lost?
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  9. #8  
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    How do you think the experiment could be made fair?
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  10. #9  
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    Life isn't fair :?
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

    -Einstein

    http://boinc.berkeley.edu/download.php

    Use your computing strength for science!
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  11. #10  
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    Hey?
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  12. #11  
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    Lol, just messing with you.
    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

    "Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence"

    -Einstein

    http://boinc.berkeley.edu/download.php

    Use your computing strength for science!
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  13. #12  
    Geo
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    Quote Originally Posted by BrainKing
    How do you think the experiment could be made fair?
    By doing it more than once.
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