Benzoic acid has a known internal energy of combustion (3251 kJ mol 1 ). When a
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Benzoic acid has a known internal energy of combustion (–3251 kJ · mol–1). When a bomb calorimeter was calibrated by burning 0.825 g of benzoic acid in oxygen, the temperature rose 1.94°C. A sample of the sugar d-ribose (C5H10O5) of mass 0.727 g was then burned in excess oxygen in the same calorimeter, forming gaseous CO2 and liquid H2O. The temperature of the calorimeter rose from 21.81°C to 22.72°C.
(a) Write a balanced equation for the combustion.
(b) Calculate the internal energy change, ΔU, for the combustion of 1.00 mol ribose molecules.
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a Balanced Equation for the Combustion The balanced equation for the combustion of dribose C5H10O5 i...View the full answer
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Related Book For 
Chemical Principles The Quest For Insight
ISBN: 9781464183959
7th Edition
Authors: Peter Atkins, Loretta Jones, Leroy Laverman
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