One cup of popcorn that produces 131kj when burned in a calorimeter

The amount of kilo calories in one cup of popcorn that produces 131 kj when burned.

1 kilo calorie is equivalent to 4.184 kilo joule

Therefore, 131 kilo joule will be equivalent to;

131 kj * (1/4.184) = 31.3097 kilo calories

Therefore, the cup of popcorn will produce 31.3097 kilo calories