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Published byΝάρκισσος Καλάρης Modified over 6 years ago
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Bomb Calorimeter Thermometer Electrical Leads E = q + w
Motorized Stirrer O2 Source Bomb Calorimeter doesn’t permit the burning sample to expand (the “bomb” is very strong). No expansion, ... No V... Insulated Jacket Igniter wire No work done. Bomb E = q Food Heat collected is equal to the actual amount of energy available from the food material.
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Bomb Calorimeter (Problem 6.45)
A chemical engineer studying the properties of fuels placed g of a hydrocarbon in the bomb of a calorimeter and filled it with O2 gas. The bomb was immersed in L of water and the reaction initiated. The water temperature rose from 20.00C to C. If the calorimeter (excluding the water) has a heat capacity of 403 J/ C, what was the heat of combustion per gram of the fuel?
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Bomb Calorimeter (Problem 6.45)
Heat Lost Heat gained (water) (hydrocarbon) q = m c T J q = g 4.184J/gC 3.55C J J q = J What was the heat of combustion per gram of the fuel? Heat gained (calorimeter) q = Ccalorimeter T J 1.500 gfuel = q = J/C C J/g q = J
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