Liquid oxygen expansion in vaccum

AI Thread Summary
The discussion revolves around calculating the amount of liquid oxygen needed in a vacuum container to ensure even distribution when it expands into gas. The scenario involves two containers: one in a vacuum with a height of 6000m and the other filled with liquid oxygen at -190 degrees Celsius. The goal is to achieve a uniform mass distribution of the liquid oxygen when it occupies the vacuum container. Participants emphasize the importance of conducting personal research and calculations, especially for a national level competition. The conversation highlights the theoretical challenges faced before practical implementation.
anubodh
Messages
51
Reaction score
0

Homework Statement



There are 2 containers.Outside temperatue is -190 degree celcius.(boiling point of liquid oxygen is -180 degree celcius).One is filled with vacuum and can have a minimum height of 6000m and other is filled with liquid oxygen (1140 kg/m3 density) at -190 degree celcius which can have a miximum height of half the height of the other container.Both have 1m x 1m base.I want to know how much liquid oxygen should be put in the vacuum container so that when it occupies the entire vacuum container it is distributed nearly equally at both upper and lower half [and not like that it has more mass at the base and very few at the top].[Inside vacuum container it would form gas as its boiling point woul decrease].
Please reply...
I need this answer for a national level competition..
Thanks

Homework Equations





The Attempt at a Solution


 
Physics news on Phys.org
Even for a national level competition, you must do your own work. Even if the answer won, I doubt you would share the prize with PF.
 
Its not that answer to this question will get me a prize but it is a difficulty i am facing theoretically.So i want to clarify it before i start working on this project practically.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Thermodynamics question: venting a tank of liquid oxygen
Replies
2
Views
2K
Volume Expansion: Answers to Homework Questions
Replies
3
Views
12K
Thermodynamics: Steam Powered Carnot Engine Question
Replies
2
Views
6K
Can Old Handouts Effectively Prepare You for Physics Tests?
Replies
11
Views
4K
Probability and Statistics Questions
Replies
1
Views
5K

Hot Threads

Recent Insights

Back
Top