What Causes a Balloon to Expand in Space?

  • Context: Undergrad 
  • Thread starter Thread starter Misr
  • Start date Start date
  • Tags Tags
    Space
Click For Summary

Discussion Overview

The discussion centers on the behavior of a balloon when transported to space, particularly focusing on the factors that cause its volume to increase in a microgravity environment. Participants explore concepts related to pressure, gravity, and the physical properties of gases.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest that the volume of the balloon increases when taken to space due to changes in gravitational acceleration.
  • There is a discussion about the role of air pressure inside and outside the balloon, with some asserting that the air pressure is equal in both environments when on Earth.
  • Questions are raised regarding what happens to the air pressure when the system is removed from the atmosphere, with some participants indicating that the air pressure inside the balloon decreases.
  • One participant questions whether the pressure inside the balloon remains constant if there is no leakage.
  • There is uncertainty about the balloon's behavior in space, with participants asking whether it shrinks, expands, or remains the same.

Areas of Agreement / Disagreement

Participants express differing views on the effects of gravity and pressure on the balloon's volume, and the discussion remains unresolved regarding the specific mechanisms at play.

Contextual Notes

Limitations include assumptions about the balloon's material properties, the effects of temperature, and the specifics of the transition from Earth's atmosphere to space.

Misr
Messages
384
Reaction score
0
[PLAIN]http://img521.imageshack.us/img521/7651/unled1234.jpg

we suspend this ball in the tank by using a string ,then filling the tank with water as shown..
thus we have,
Fb=Ft+Fg(I guess so)

what happens when this tank with its contents is transported to the space

The volume of the balloon increases so why?
 
Last edited by a moderator:
Physics news on Phys.org
Presumably, you mean "transported to orbit or beyond". What is different for the tank and balloon (and everything else) when not on Earth?
 
What is different for the tank and balloon (and everything else) when not on Earth?
the acceleration due to gravity.

could you tell me why the volume of the ballom increases on going to space?what is the effect of acceleration due to gravity on the volume of the ballon?
 
Misr said:
the acceleration due to gravity.

could you tell me why the volume of the ballom increases on going to space?what is the effect of acceleration due to gravity on the volume of the ballon?

You have stated, correctly, that the balloon would expand if the system is taken to space. What is it that keeps the balloon from expanding when the system is on the ground?
 
the air pressure is equal inside the balloon and outside the balloon correct?
 
Misr said:
the air pressure is equal inside the balloon and outside the balloon correct?

Yep. So what happens to the air pressure then you take the system out of the atmosphere?
 
Yep. So what happens to the air pressure then you take the system out of the atmosphere?
the air pressure inside the balloon becomes less,correct?
 
Misr said:
the air pressure inside the balloon becomes less,correct?

yes, but why? What happens to the balloon?
 
Wouldn't the pressure inside the balloon stay constant assuming no leakage?
 
  • #10
JHamm said:
Wouldn't the pressure inside the balloon stay constant assuming no leakage?

What HAPPENS to the balloon? Does it shrink? Get bigger? Stay the same?
 
  • #11
Ah, sorry :)
 

Similar threads

  • · Replies 24 ·
Replies
24
Views
2K
  • · Replies 7 ·
Replies
7
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 20 ·
Replies
20
Views
3K
  • · Replies 4 ·
Replies
4
Views
5K
  • · Replies 20 ·
Replies
20
Views
7K
  • · Replies 2 ·
Replies
2
Views
11K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 2 ·
Replies
2
Views
10K
  • · Replies 12 ·
Replies
12
Views
5K