posted by Sam on .
One mole of carbon (12.0 g) in the form of
crystalline graphite is burned at 25
1.000 atm pressure to form CO2(g). All of the
heat produced is used to heat a 4560 g bath
of liquid water, originally at 25
C. What is
the ﬁnal temperature of the water bath? The
heat of formation of CO2(g) is −393.5 kJ/mol
and the speciﬁc heat of water is 4.18 J/g/
One mole C burned produces 393.5 kJ.
q = mass H2O x specific heat H2O x (Tfinal-Tinitial)
393.5 = 4560g x 418 x (Tf-25).