6-3: Bomb Calorimetry Chapter 6 Dr. Robert Belford & Rebekah Reinhart

Question 1
 2.75 grams of ethanol, C2H5OH(l) was combusted in a bomb calorimeter whose specific heat was 5.126 kJ/oC. The temperature increased from 25.00oC to 32.85oC. Calculate the heat of combustion per gram of ethanol. (A)  -40.239 kJ/g (B)  -14.6 kJ/g (C)  -110.7 kJ/g (D)  NOTA Hint

Question 2
 2.75 grams of ethanol, C2H5OH(l) was combusted in a bomb calorimeter whose specific heat was 5.126 kJ/oC. The temperature increased from 25.00oC to 32.85oC. Calculate the heat of combustion per mole of ethanol. (A)  -40.239 kJ/mol (B)  -680. kJ/mol (C)  -14.6 kJ/mol (D)  NOTA Hint

Question 3
 2.500 grams of benzoic acid, C7H6O2(s) was combusted in a bomb calorimeter whose specific heat was 5.763 kJ/oC. The temperature increased from 25.00oC to 37.15oC. Calculate the heat of combustion per gram of benzoic acid. (A)  -27.99 kJ/g (B)  -69.98 kJ/g (C)  -175.0 kJ/g (D)  NOTA Hint

Question 4
 2.500 grams of benzoic acid, C7H6O2(s) was combusted in a bomb calorimeter whose specific heat was 5.763 kJ/oC. The temperature increased from 25.00oC to 37.15oC. Calculate the heat of combustion per mole of benzoic acid.l (A)  -27.99 kJ/mol (B)  -2.5000 * 103 kJ/mo (C)  -3.4181 * 103 kJ/mo (D)  NOTA Hint