Ask Question
2 June, 02:48

A researcher studying the nutritional value of a new candy places a 4.60 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.69 ∘ C. If the heat capacity of the calorimeter is 32.20 kJ ⋅ K - 1, how many nutritional Calories are there per gram of the candy?

+5
Answers (1)
  1. 2 June, 04:14
    0
    4500.5 nutritional calories per gram

    Explanation:

    Heat lost by the new candy = heat gained by the bomb calorimeter.

    Heat gained by the bomb calorimeter = c*ΔT

    where c = heat capacity of the calorimeter = 32.20 KJ/K = 32200 J/K

    ΔT = change in temperature = 2.69°C = 2.69 K.

    Heat gained by the bomb calorimeter = 32200 * 2.69 = 86618 J

    Heat lost by the new candy = heat gained by the bomb calorimeter = 86618 J = 20702.2 calories

    4.60 g of the new candy lost this amount of calories by undergoing combustion,

    The amount of calories per g = 20702.2 calories/4.6 g = 4500.5 calories per gram
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A researcher studying the nutritional value of a new candy places a 4.60 g sample of the candy inside a bomb calorimeter and combusts it in ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers