Answer:
[tex]E = 13.6 kJ[/tex]
Explanation:
As we know that
1 cal = 4.18 J
[tex]1 kcal = 10^3 cal[/tex]
so we have
[tex]1 kcal = 10^3 \times 4.18 J[/tex]
now we have total energy in k cal unit given as
[tex]E = 3.25 kcal[/tex]
[tex]E = 3.25 \times 4.18 \times 10^3[/tex]
[tex]E = 13585 J[/tex]
[tex]E = 13.6 kJ[/tex]