A Snickers® candy bar contains 280 Calories, of which the fat content accounts for 120 Calories. What is the energy of the fat content, in kJ? (1 cal = 4.184 J) A) 5.0 × 10^-¹ kJ B) 1.2 kJ C) 5.0 × 10² kJ D) 1.2 × 10³ kJ E) 1.6 × 10³ kJ

Question

Quizplus · Accepted Answer

We start with the given information: 
- 280 Calories in the Snickers bar
- 120 Calories from fat

To find the energy of the fat content in kJ, we need to convert the Calories to Joules and then to kilojoules:

1. Convert Calories to Joules:

120 Calories x 4.184 J/Cal = 502.08 J

2. Convert Joules to kilojoules:

502.08 J / 1000 = 0.50208 kJ

Therefore, the energy of the fat content in the Snickers bar is 0.50208 kJ.

The only option that matches this result is choice C: 
C) 5.0 × 10¹² kJ (which is equal to 0.50208 kJ in standard notation)

A Snickers® Candy Bar Contains 280 Calories, of Which the Fat