Question

Energy that is not utilized for work or heat transfer is converted to the chemical energy of body fat containing about 39 kJ/g. How many grams of fat will you gain if you eat 2600 kcal in one day and do nothing but sit relaxed for 16.0 h and sleep for the other 8.00 h? Assume sleeping burns 1.2 kcal/min, while sitting relaxed burns 1.7 kcal/min

Answer 1

Energy In = 2600kCal

Energy Out
16 x 60 x 1.7kCal + 8 x 60 x 1.2kCal

1 kCal = 4.184kJ [approx]