Answer to Question #96559 in General Chemistry for Ahmad

Question

A 0.534 g sample of liquid C6H12 was combusted completely using excess oxygen inside a bomb (constant volume) calorimeter, with the products being carbon dioxide and liquid water. The calorimeter's heat capacity is 4.862 kJ °C-1.

If the temperature inside the calorimeter increased from 25.0 °C to 33.1 °C, determine ΔrH for this reaction in kJ mol-1 (with respect to C6H12) at 298 K. Do not worry about how realistic the final answer is.

Answer 1

Q=mc∆T= 0.534 x 4.862 x 6.1 = 15.8374788 J

15.8374788 x 0.534/84= 2,4912888 kJ/mol