Question

what is relationship between Calories and joules and also convert 4.2 calories to joules
PLEASE ANSWER FAST IT IS AN EMERGENCY..!!!!!!!​

Answer 1

Answer:

1 calorie=4.2 Joules

so 4.2 calories is 4.2*4.2=17.64

Answer 2

Answer:

4.2 cal→ 4.2×4.2

          →[4.2]²

          →17.64 J