Answer to Question #299580 in General Chemistry for Mae

Question

Isooctane is a primary component of gasoline and gives gasoline its octane rating. Burning isooctane in a bomb calorimeter releases 330.0 kJ of heat; the temperature in the bomb increases from 23.20C to 66.50C. What is the heat capacity of the bomb calorimeter?

Answer 1

∆T=65.5°c -23.2°c

∆T=43.3°c

Vol×density = mass

1000ml×0.688g/1 ml

=6.88g

Total mass will be,

W=1000g+6.88g

W=1006.88g

Heat released is given by

q=m×c×dT

330.0kg=1006.88g× S×43.3°c

S=330.0kg/1006.88g× 43.3°c

S=0.00757KJ/g°c

Therefore,the heat capacity of calorimeter is 0.00757KJ/g°c