Question

A 17.5g sample of a candy bar is burned in a bomb calorimeter. which has a heat capacity of 8.75 kJ/degrees C. The temperature increases from 20.2 degrees C to 59.9 degrees C

03 Question (5 points) See page 413 A 17.5 g sample of a candy bar is burned in a bomb calorimeter, which has a heat capacity of 8.75 kJ/°C. The temperature increases from 20.2°C to 59.9°C. 1st attempt Part 1 (2.5 pts) M See Periodic Table O See Hint What is the fuel value of the candy bar? kJ/g Part 2 (2.5 pts) How many Calories are in a 98.7 g candy bar? 1 Cal = 4.184 kJ Cal < 03/25 > SUBMIT

Answer 1

KN Mass a sample= sample SI Cpc = 9.757.c Tie 20.2°C Te - 59.9°C AT= 59.9 20.2 - 39.7°C theat absorted by calorimetor = tp, ex at = 8.75 X 39.7 = 347.375 kJ the at produced by the fuel o that absorbed = – 347.375 kJ fuel value of candy bar = - 3471375 / 17.5 - – 19.05 kJlg. KIlg Amt of treat produced by going – – 19.05 x 98.7 KT -1959,195 KI energy in talosie = -1959.195 4, Isu = – 458,25 cal