Asked Nov 19, 2019

The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 x 103 Calories.

If a runner expends 1850 kJ/h, how long (h) does she have to run to work off 6.05 lb of body fat? Enter your answer in decimal format with one decimal place.


I'm not really sure how to start off this problem...


Expert Answer

Step 1

According to the question, 1 Calorie = 1 kcal and 1 lb = 4.1×103 Calorie and also 1 kcal...


Image Transcriptionclose

x 6.05 lb 4.1x 103 Calories 6.05 lbx 1 lb 4.1x103 Calories 1 kcal 4.184 kJ -6.05 lbx 1 Calorie 1 lb 1 kcal 103784 kJ


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: Using standard heats of formation, calculate the standard enthalpy change for the following reaction...

A: The balance chemical equation for calcium carbonate dissociation and standard enthalpy change of rea...


Q: please see attached

A: The volume of a sample argon gas is calculated as,


Q: Calculate the mass in grams of CH4 gas that can be dissolved in 625.  ML of water at 25 Celsius and ...

A: Given:Henry’s law constant for methane(CH4)=1.4x10-3 M/atmVolume of water=625 mLPartial pressure of ...


Q: Arrange the following molecules in order of increasing average molecular speed. NH3 at 383K, Ar at 3...

A: The average molecular speed of a gas is directly proportional to temperature and indirectly proporti...


Q: Identify which of the following reactions are redox reactions. C6H12(s) + 9O2(g) --> 6H2O(g) +6CO...

A: The redox reactions are identified as,


Q: Combustion of natural gas (primarily methane) occurs in most household heaters. The heat given off i...

A: Click to see the answer


Q: Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C ...

A: Oxidation is defined as process of addition of oxygen or an electronegative element to the substance...


Q: 47. What must be the velocity of electrons if their associ- ated wavelength is to equal the Bohr rad...

A: Given information,The wavelength is equal to the Bohr radius, a0.


Q: 0.792g of Aluminum reacts with sulfuric acid to form aluminum sulfate and H2 and 0.0813 of H2 is col...

A: Click to see the answer