One mole of carbon (12.0 g) in the form of crystalline graphite is burned at 25◦C and 1.000 atm pressure to form CO2(g). All of
the heat produced is used to heat a 5100 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/◦C. Answer in units of ◦C
Changing the coefficients is one of the steps of balancing a chemical equation. Changing the subscript changes the compounds being used, while changing the coefficient changes the amount of each compound being used.