1.

0.562 g of graphite kept in a bomb calorimeter in excess of oxygen at 298 K and 1 atmospheric pressure was burnt according to the equation: During the reaction, temperature rises from 298 K to 298.89 K. If the heat capacity of the calorimeter and its contents is 20.7 kJ/K. What is the enthalpy change for the above reaction at 298 K and 1 atm?

Answer» REACTIONAS the REACTION is a COMBUSTION reaction that must be an exothermic reaction.∆H = -18.4 KJ for the combustion of 0.562 g of C (graphite)For 1 mol of C (graphite),The ENTHALPY of combustion of graphite is -392.88 kJ


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