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ChE Thermodynamics help!

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moarplease
Posts: 293 - Karma: 15
The following table gives the experimentally measured volume per gram of mercury as a
function of temperature.

T(oC) Volume (cm3gm-1)
0        0.0735560
10      0.0736893
20      0.0738233
30      0.0739572
40      0.0740910
50      0.0742250
60      0.0743592
70      0.0744936
80      0.0746282
90      0.0747631
100    0.0748981

Use the data to estimate the error in the temperature measured by mercury in glass thermometer
which has been calibrated only at 0oC and 100oC. Prepare a graph of your results.
Feb 8 2011 7:12PM
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yamahabdv
Posts: 101 - Karma: 18
o man its been a long time sense i have had this class
Feb 8 2011 7:22PM
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moarplease
Posts: 293 - Karma: 15
ya...
Feb 8 2011 7:33PM
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yamahabdv
Posts: 101 - Karma: 18
where do you go to school at?
Feb 8 2011 7:38PM
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a_pla5tic_bag
Posts: 9210 - Karma: 5,357
maybe graph it first. i'm guessing it should be going at a fixed rate. it looks like it is, but a graph would reveal anything odd. i did this last semester, never this specific type of problem though.
Feb 8 2011 7:45PM
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SkiThe603
Posts: 5376 - Karma: 498
HAHAHA NOOOO
Feb 8 2011 7:50PM
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moarplease
Posts: 293 - Karma: 15
since it was only calibrated at 0 and 100 degrees I thought I would simply find the slope of those two points, (m=change of y/ change of x) to obtain the actual value.  Then graph all those points, find the trend line, get the slope of that and compare the slopes to find error.  what i soon figured out was that they used the slope of the two calibrated points to obtain the values on the table, therefore yielding the same slope on the graph. 
Feb 8 2011 8:05PM
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