Two trials were performed in an experiment to determine the latent heat of vaporization of water at 100°C. The values of LV of water obtained were LV1 = 336 cal/g and LV2 = 338 cal/g. Find the percent difference between the two values. Find the percent error for each measurement if the accepted value of LV of water at 100°C is 339 cal/g.
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Percent error in each case is 0.88% and 0.29% respectively
Explanation:
The latent heat of vaporization of water measured first LV1= 336 cal/g
The latent heat of vaporization of water measured second LV2=338 cal/g
accepted value of Latent heat of vaporization of water is =339cal/g
error in LV1 = |339-336|=3
error in LV2=|339-338|=1
Percentage error for LV1 =( error in LV1/accepted value )*100 =%.
Percentage error for LV2 =( error in LV2/accepted value )*100=%.
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