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Energy that is not utilized for work or heat transfer is

Chapter 7, Problem 48

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QUESTION:

Problem 48PE

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 10,000 kJ (about 2500 kcal) one day and do nothing but sit relaxed for 16.0 h and sleep for the other 8.00 h? Use data from Table 7.5 for the energy consumption rates of these activities.

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QUESTION:

Problem 48PE

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 10,000 kJ (about 2500 kcal) one day and do nothing but sit relaxed for 16.0 h and sleep for the other 8.00 h? Use data from Table 7.5 for the energy consumption rates of these activities.

ANSWER:

Solution 48PE

From the data given, we are required to calculate how much energy you would lose if you spend your day as given in the question.

Step 1 of 3

The energy you gain from food is 10,000 kJ.

Table 7.5 says,

You consume 83 J/s while you are sleeping.

You consume 120 J/s while you are sitting at rest.

The energy consumed by you after you sit relaxed for 16.0 h is  J

                                                                                                        J

                                                                                                       kJ

The energy consumed by you after you sleep for 8.00 h is  J

                                                                                              J

                                                                                              kJ

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