A student burns paraffin oil in a tea light to test the efficiency of the calorimeter. Given qcal=15881.8 J and the following, calculate the efficiency of the calorimeter
- mass of paraffin oil and tea light before burning = 21.998 g
- mass of paraffin oil and tea light after burning = 21.277 g
- actual energy density if paraffin oil = 4.67 *10^7 J/kg