Life-altering question on farts!?

Question

Considering that warm air rises, if a man builds up gas and the ambient temperature is less than his body temperature, does he weigh less than when he does not have gas? If he ate a pound of beans, would he weigh more or less? Going further, if one ate enough gaseous food, would they ultimately float off into space?

Answer 1

Assuming that you are a high school guy i am answering this question.


As told by some of my previuos answerers that the gases formed inside the stomach are mostly heavier than air.

Let us consider the worst case scenario; let us assume in some hypothetical man's stomach hydrogen gas is formed.

Hydrogen gas has a molecular weight of 2; it means that at 0 degree cencius temperature and at normal air pressure 22.4 litre of hydrogen will weigh 2 grams only.

Now another information is there; the volume of empty human stomach is like one's fist. Now, the hydrogen formed inside the stomach has a volume of merely a few millilitres. An average healthy human being of adult age weighs around 60 kg. The buoyancy provided by the hydrogen gas inside the stomach will be so small that to measure it's effect you will require a weighing machine which can measure perfect weight upto 20 th decimal.

Now provided the following conditions

1. someone forms hydrogen gas inside his body

2. you have a weighing machine of such a high resolution that it can measure weight change upto 20 th decimal.

you definitely can measure the weight change of that person and human feelings are so blunt that it recognises weight change in grams and kilos.

If you are not a science student it will be difficult for you to understand some of my explanations above. In that case I hope your science teacher can help you.

But the best answer should go to myself. Although I don't care for it. Thanks for giving an impetus to think.

Answer 2

I do believe that those particular gases are not that much lighter than air as Helium and Hydrogen are.

If he is filled with a hot gas however and can float up like a hot air balloon... he weighs the same but his density has changed.

Answer 3

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Answer 4

If he eats and doesn't give off any gas, he weighs more, but his body would expand. A person can only lose mass by expelling weight or by consuming negative mass... if that's possible.

Answer 5

If he ate a pound of beans he'd be heavier than before. Yes.

Answer 6

if he ate a pound of beans he would have the shiites.

Answer 7

no because dioxides and methane are heavier than air so in fact you might weight more depending.

Answer 8

it would be swell to float up into space hahahaha!

Answer 9

I'll pass.

Answer 10

dork!