Thermodynamics B/C

[mnparhy]

Rule states "At the start of the competition block, teams will be given 5 minutes to set up or modify their devices"
Any thoughts on why so much time is given for set up or what kind of modifications are possible based on the test conditions?

[appleshake123]

Rule states "At the start of the competition block, teams will be given 5 minutes to set up or modify their devices"
Any thoughts on why so much time is given for set up or what kind of modifications are possible based on the test conditions?

Possibly, for modifications, devices out of spec(e.g. the device is 17 cm instead of 15 cm in length for C division) can cut down on the length without having to worry about the written test in that time frame.

It is also possible that the teams that fit the spec can obtain the water and begin the cooling period. They can devise a prediction without any person taking the paper test until this 5 minute period is over.

These are just my speculations. Don't take my word.

[vincentg903]

In the rules it states fiberglass insulation is not allowed. Is other forms of fiberglass permitted?

[WhatScience?]

Hey guys...so I have been taking practice tests and have been thinking...how much of the test is actually going to be on what the rules say.(I know that in theory it is everything but in reality I doubt it will be that much). That is why I have been taking notes on everything thermo I can find since June but does anyone have a good list of topics to study?

[LittyWap]

Hey guys...so I have been taking practice tests and have been thinking...how much of the test is actually going to be on what the rules say.(I know that in theory it is everything but in reality I doubt it will be that much). That is why I have been taking notes on everything thermo I can find since June but does anyone have a good list of topics to study?

Basically, take a college level textbook, and go above that. To give you my Thermo Binder Documents would cause a ruckus among my team, but suffice it to say that I have been taking way too many notes. I have the Laws of Thermo, Gas Laws, the Carnot Cycle, a conversion table for every KMS, CGS, PFS and MTS units, the interactions between Le Chatlier's principle and Thermo, Thermo dynamic system, integral thermodynamic calculus, types of heat transfer, practical applications of thermodynamics, the real gas laws, thermodynamic history, and 100+ pages of Wikipedia. I find it to much more advantageous to have no social life and be prepared for any Thermo-philiac with 3 PhD's in the matter.

To give you a hint as to the detail I would go to, here is the Elliott-Suresh-Donohue EOS in expanded form:

(P*Vm)/(R*T) = 1 + 4c((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))*n/V )/1-1.9(((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))n/V) + Zm(1 + k3(c-1)) ((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))*n/V )(e^((1.3806485279 * 10 ^-23 J/K ( (1.000 + 0.945(c-1) + 0.134(c-1)^2) / (1.023 + 2.225(c-1) + 0.478(c-1)^2) ))/ 1.3806485279 * 10 ^-23 J/K * T) – k2)/1+k1(((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))n/V)( e^(1.3806485279 * 10 ^-23 J/K ( (1.000 + 0.945(c-1) + 0.134(c-1)^2) / (1.023 + 2.225(c-1) + 0.478(c-1)^2) )/ 1.3806485279 * 10 ^-23 J/K * T) – k2)

[WhatScience?]

Hey guys...so I have been taking practice tests and have been thinking...how much of the test is actually going to be on what the rules say.(I know that in theory it is everything but in reality I doubt it will be that much). That is why I have been taking notes on everything thermo I can find since June but does anyone have a good list of topics to study?

Basically, take a college level textbook, and go above that. To give you my Thermo Binder Documents would cause a ruckus among my team, but suffice it to say that I have been taking way too many notes. I have the Laws of Thermo, Gas Laws, the Carnot Cycle, a conversion table for every KMS, CGS, PFS and MTS units, the interactions between Le Chatlier's principle and Thermo, Thermo dynamic system, integral thermodynamic calculus, types of heat transfer, practical applications of thermodynamics, the real gas laws, thermodynamic history, and 100+ pages of Wikipedia. I find it to much more advantageous to have no social life and be prepared for any Thermo-philiac with 3 PhD's in the matter.

To give you a hint as to the detail I would go to, here is the Elliott-Suresh-Donohue EOS in expanded form:

(P*Vm)/(R*T) = 1 + 4c((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))*n/V )/1-1.9(((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))n/V) + Zm(1 + k3(c-1)) ((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))*n/V )(e^((1.3806485279 * 10 ^-23 J/K ( (1.000 + 0.945(c-1) + 0.134(c-1)^2) / (1.023 + 2.225(c-1) + 0.478(c-1)^2) ))/ 1.3806485279 * 10 ^-23 J/K * T) – k2)/1+k1(((((1.3806485279 * 10 ^-23 J/K)Tc/Pc)* (0.0312 + 0.087(c-1) + 0.008 (c-1)^2) / (1.000 + 2.455(c-1) + 1.732(c-1)^2))n/V)( e^(1.3806485279 * 10 ^-23 J/K ( (1.000 + 0.945(c-1) + 0.134(c-1)^2) / (1.023 + 2.225(c-1) + 0.478(c-1)^2) )/ 1.3806485279 * 10 ^-23 J/K * T) – k2)

Oh..looks like I am adequately prepared then...

I have no life too!!!!

[JoeyC]

Hey guys, so Pyrogel XT-E looks like a good- (Looks down, sees Elliot-Donahue-something EOS expanded equation )
- uhhh...
So anyways the Pyrogel XT-E seems like a good hydrophobic insulator that I can reuse in other situations http://www.buyaerogel.com/product/pyrogel-xt-e-blanket/ , but do you think it would be a good investment, or do you recommend something else?

[syo_astro]

...integral thermodynamic calculus...I find it to much more advantageous to have no social life and be prepared for any Thermo-philiac with 3 PhD's in the matter.

Scioly tests should have NO calculus...not saying you can't learn it for fun, though! I know, you'll complain at me about that one test writer who put (copied?) a calc question or the fact that you can't really understand things without calc. Anticipating that, I'll say you can come up with a fairly good understanding and plenty of questions you won't expect without calculus (though, I don't think I'm expecting to write any thermo this year;) ).

Also, I now want to search for that one person with 3 PhDs relevant to thermo that somehow also writes scioly tests XD.

[WhatScience?]

...integral thermodynamic calculus...I find it to much more advantageous to have no social life and be prepared for any Thermo-philiac with 3 PhD's in the matter.

Scioly tests should have NO calculus...not saying you can't learn it for fun, though! I know, you'll complain at me about that one test writer who put (copied?) a calc question or the fact that you can't really understand things without calc. Anticipating that, I'll say you can come up with a fairly good understanding and plenty of questions you won't expect without calculus (though, I don't think I'm expecting to write any thermo this year;) ).

Also, I now want to search for that one person with 3 PhDs relevant to thermo that somehow also writes scioly tests XD.

If I ever find that person, I am totally forcing him to teach me the secrets of thermo...lol

[takuramen89]

Hello I came here because I have a few questions
1). i see aerogels are a abig thing for thermo, but im confused because i see alot of pictures of them seeing them in a pebble like form but i also see picture of it being one sheet. How exactly do aerogels work?

2).in the rules it says the beaker has to be roughly ratio'ed at 1.4 times the diameter, ive been looking all around abd the closest ive seen is 1.2 , does anyone know where i can buy one with that ratio?