Question

3.25 kcal is the same amount of energy as ________?

1) 3.25 J
2) 0.777 J
3) 777 J
4) 13600 J
5) 13.6 J

Answer 1

3.25 kcal is equivalent to 13600 J, which is obtained by using the conversion factor where 1 kcal equals 4186 J.

Step-by-step explanation:

The question is about converting energy units from kilocalories (kcal) to joules (J). The conversion factor we use states that 1.000 kcal is equivalent to 4186 J. Thus, to convert 3.25 kcal to joules, we multiply 3.25 by 4186, which gives us 13605.5 J. Since the options provided do not include decimals, the closest answer rounded to the nearest whole number is 13600 J.

Therefore, 3.25 kcal is the same amount of energy as 13600 J.