18. For the following combustion reaction of benzoic acid (HC7H5O2; molar mass = 122.1 g/mol) HC;H5O2(s) + 15/202(g) 7CO2(g) + 3H20(1); DHcomb = -3226 kJ --> 1.00 g of benzoic acid is combusted in a bomb calorimeter, which contains 1.00 kg of water (specific heat = 4.184 J/g.°C) and the bomb has a heat capacity of 890 J/°C. If the initial temperature of the calorimeter is 25.0°C, what is the final temperature of the calorimeter when the combustion is completed? (A) 51.8°C (B) 31.3°C (C) 30.2°C (D) 27.0°C
18. For the following combustion reaction of benzoic acid (HC7H5O2; molar mass = 122.1 g/mol) HC;H5O2(s) + 15/202(g) 7CO2(g) + 3H20(1); DHcomb = -3226 kJ --> 1.00 g of benzoic acid is combusted in a bomb calorimeter, which contains 1.00 kg of water (specific heat = 4.184 J/g.°C) and the bomb has a heat capacity of 890 J/°C. If the initial temperature of the calorimeter is 25.0°C, what is the final temperature of the calorimeter when the combustion is completed? (A) 51.8°C (B) 31.3°C (C) 30.2°C (D) 27.0°C
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 50E: How much heat is produced when loo mL of 0.250 M HCl (density, 1.00 g/mL) and 200 mL of 0.150 M NaOH...
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