Homework Help: Chemistry

Posted by Kyle on Thursday, October 11, 2012 at 12:23am.

The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb calorimeter? the specific heat capacity of water is 4.184 J/g*K and the molar mass of glucose is 180.2 g/mol.

Chemistry - DrBob222, Thursday, October 11, 2012 at 12:37am
2803 x (1/180.2) = q = about 16 kJ. I would change that to J.
q = [mass H2O x specific heat H2O x delta T] + (Ccal*(delta T) = 0
Substitute and solve for delta T.

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