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engage xowLv2| Online teaching x agenow.com/n/takeAssignmer dožlocator-assignment-take&takeAssignment; Sessionl.ocator-assignment-take cofTee cup" calorimeter, or ooestant prossure calorimeter, in freqaenily ased to determine the specific beat of a sohd, or to measure the energy of a solation phase reaction magneslum to 99,42 "C and then drops it into a cup cotaining 7847 prms of water at 224 oC She oeasures the final tempersture to be 34.78c laboratory a In the A student heats 64.38 grams of The heat capacity of the calonmeter (sometimes referred to as the calorimeter constant) was determined in a Assuming that no heat is lost to the surroundings caleulabe the specific heat of magnesium Specific Heat (Mgi in a separate experiment to be 1.66 3C Try Another Version tem attempts remainingExplanation / Answer
Solution-
Here the heat lost by Mg = mass x specific heat x temperature change
= 64.38 x c x (99.42 - 34.78) = 4161.52c J
And the heat gained by water = mass x specific heat x temperature change
= 78.47 x 4.184 x (34.78 - 22.43) = 4054,73 J
Heat gained by calorimeter = heat capacity x temperature change
= 1.66 x (34.78 - 20.64) = 23.47
Total heat lost = total heat gained
4161.52c = 4054.73 + 23.47 = 4078.2
Specific heat of Mg =
=>c = 0.979 J/goC
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