Undergoing moderate activity, an average person will generate about 350 kJ of heat per hour. Using the heat of combustion of palmitic acid (∆H = -9977.6 kJ/mol) as an approximate value for fatty substances, estimate how many grams of fat would be required per day to sustain this level, if all were burned for heat.

Q: A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the…

A: A pound of body fat stores an amount of Chemical Energy equivalent to 3500 Cal. Also, while sleeping…

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Q: If 10g of methane combust completely according to the reaction below, how much energy is released? (…

A: -890.3kj energy release in 1mole CH4 Given mass of CH4 =10g Molar mass=16 Mole=mass/molar mass…

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A:

Q: Bicycling 10 miles per hour expends 290 Cal/h. How many chocolate chip cookies that contain 50. Cal…

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Q: Enter your answer in the provided box. If an athlete expends 3740. kJ/h, how long does she have to…

A: 1 kCal = 4.184 kJ 1.00 lb (pound) fat is equivalent to 4.10 x 103 Calories And 1 nutritional calorie…

Q: A food package label lists an oil as “partially hydrogen- ated." What does this mean?

A:

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A: Hi, since there are multiple questions posted we will provide you with answers for the first…

Q: how energy and matter is exchanged among the subsystem

A: Anything that has mass and occupies space is termed as matter. Matter and energy is exchanged…

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Q: What is the fuel value of ethane, C2H6,C2H6, in kilojoules per gram of ethane? fuel value:

A:

Q: Hydropower

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Q: Why was natural gas flared-off (burning) and not considered a source of energy, a few decades ago?

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Q: Discuss briefly the effect of temperature on the physical properties of fats and oils.

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Q: how many hours of walking per day would you have to do in two weeks to lose 3 pounds

A:

Q: How many grams of butane must be burned to release 1.00 x 104 kJ of heat?

A:

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Q: A  4.03  kg piece of granite with a specific heat of 0.803 J g-1 °C-1 and a temperature of  93.5  °C…

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A: We have to study all the lines given about Arsenic. We have been asked to find the wrong statement.

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A: Applying mole concept.

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Q: Why is atomic structure important to life? Explain briefly

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A:

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Q: 4. How did carbon move through the system before combustion of fossil fuels?

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.