How many farts wouldit take to fuel the spacechuttle?
4 crew members to the moon and return?
- Anonymous1 decade agoFavorite Answer
Typical gas volume percentages in a fart:
Carbon dioxide: 9%
Stinky stuff (hydrogen sulfide & methyl mercaptan): 1%
An average fart has a volume of 35.7 cubic centimeters.
Nitrogen: 21.0 milliliters
Hydrogen: 7.5 milliliters
Carbon dioxide: 3.2 milliliters
Methane: 2.5 milliliters
Oxygen: 1.1 milliliters
Stinky stuff: 0.357 milliliters
A perfect gas at STP has a molar volume of 22.4 liters. That means a fart contains:
Nitrogen: 0.000938 moles
Hydrogen: 0.000335 moles
Carbon dioxide: 0.000143 moles
Oxygen: 0.000049 moles
Stinky stuff: 0.000016 moles
Nitrogen, hydrogen and oxygen are all diatomic, forming molecules of N2, H2, and O2 at standard temperature and pressure. The molecular weights are N2 (28), H2 (2), CO2 (44), CH4 (16), O2 (32). The molecular weight of methyl mercaptan (CH3SH) is 48.1. The molecular weight of hydrogen sulfide (H2S) is 34.8. That means the masses of the gases in a fart are...
Nitrogen: 0.0263 grams
Hydrogen: 0.0003 grams
Carbon dioxide: 0.0063 grams
Methane: 0.0018 grams
Oxygen: 0.0016 grams
Stinky stuff: 0.0008 grams
The total mass of a fart is 0.0371 grams.
The "fuel" value of a fart is in the hydrogen and methane. You can get 142000 Joules per mole of H2 burned in O2, so the 0.000335 moles of hydrogen gas in a fart will yield 47.57 J. You can get 890400 Joules per mole of CH4 burned in O2, so the 0.000112 moles of methane will give us 99.72 J. The combined combustion potential energy of a fart is, therefore, 147.29 Joules. It would keep a 60-watt light bulb lit for one second, if the efficiency of conversion of chemical energy to electricity were 40.7%.
The rest is up to you. Find out how many Joules of chemical potential energy is contained in the usual load of fuel for the spacescuttle, then divide that by 147.29 Joules. The ratio will be your answer. However, I read somewhere that it takes about 1E13 Joules to put the spacescuttle into orbit, so the approximate answer is: 68 billion farts. Everyone on Earth would have to contribute ten farts.
- 1 decade ago
Space Shuttle can't go to the moon. It can't generate the energy necessary. All shuttle missions have done is exactly what is in their name, shuttle people and things from the Space Station to Earth. The shuttle has also served as a laboratory, among other things.
Think about the rockets of the Apollo era. Massive monstrosities of machine, right? But how much of that machine actually got to the moon? A command module and a lander. Then just the command module got back to earth. On the other hand, the Shuttle is a giant compared to the puny command module and lunar lander, and it's for that reason that it doesn't have the fuel capacity or capacity in general to generate enough energy to reach the moon.
Oh. and for something actually related to the question, well, that is the only true renewable resource. At least in me it is.
- Anonymous1 decade ago
Shuttles use a mixture of powdered aluminum and ammonium perchloratefly to take off and hydrazine mixed with liquid oxygen as main fuel cells.
- wunderlichLv 44 years ago
no longer sufficient BTU's of power in methane gas to offer sufficient capacity to function a airplane engine. Plus there may well be the want for extensive pressurized tanks to incorporate the gas. Jet gas remains the suited source of power to function a jet engine.
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- B.Lv 71 decade ago
It sure is easy to tell who the little children are.
- Billy ButtheadLv 71 decade ago
Well,I know it would only take one to clear it.
- 1 decade ago
well start doing it in a plastic bag and tell us
- Anonymous1 decade ago
just one ...youSource(s): nutt'n but hot air