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 2 years ago
PLEASE HELP!!!
Could a thermometer be used to measure the pressure inside a heliumfilled weather balloon?
 2 years ago
PLEASE HELP!!! Could a thermometer be used to measure the pressure inside a heliumfilled weather balloon?

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BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Well, that's what I was thinking, but would it be more reasonable to measure it with a barometer?

Kryten
 2 years ago
Best ResponseYou've already chosen the best response.0well yes, but you can also use thermometer...

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Which do you think would be the best?

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Barometer or thermometer?

Kryten
 2 years ago
Best ResponseYou've already chosen the best response.0well barometer would be better of course...

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0What I'm wondering, though, is how would you get a balloon over the top of a barometer? Isn't a barometer supposed to be inverted, so that the liquid mercury pushes up into the tube?

Kryten
 2 years ago
Best ResponseYou've already chosen the best response.0barometers if i remember correct are filled with some liquids and are compleatly full

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1The barometer looks like this dw:1339117085144:dw The inverted tube contains a space of vacuum which will be filled if the outside pressure is high. Atmospheric pressure pushes the mercury down as shown in arrow , them it pushes up the tube. The mercury goes up because that's the place which requires less force to be occupied because its vacuum. If the atmospheric pressure is high, the mercury column will be long, and vice versa.

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, I do understand that, but what do you think of measuring the pressure inside the balloon with a barometer? Do you think that sounds reasonable, or do you think it would be better with a thermometer?

Kryten
 2 years ago
Best ResponseYou've already chosen the best response.0yes sorry i meant membrane manometer...

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1I don't think you can measure the pressure inside the balloon because it depends on the elasticity of the rubber.

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Yes, I agree, as well. Don't worry  I'm not actually going to try this  this is one of the questions from my chemistry course.

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0@.Sam.  which do you think would be reasonable  measuring the pressure with a thermometer or a barometer? I guess we'll have to "think outside the box," for this question.

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1oh its a helium filled balloon, helium is the most ideal gas in the periodic table, you could use PV=nRT to calculate pressure , which means that you can use a thermometer to find the change in temperature

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Aha! That's exactly what I thought! But, just in case the barometer is the right answer, is there any way that you could measure the pressure inside the balloon, with a barometer?

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1no others unless you put the barometer inside the balloon

BarlowGirl
 2 years ago
Best ResponseYou've already chosen the best response.0Great!  that's exactly my thinking! Thank you very much  you've been so helpful! =) I really do appreciate it!
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