Respuesta :

1 cal = 4,185 J
1 kcal = 1*10^3 cal
or
=1000 cal

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]