Thermodynamics B/C

User avatar
JoeyC
Member
Member
Posts: 307
Joined: November 7th, 2017, 1:43 pm
Division: Grad
State: TX
Has thanked: 503 times
Been thanked: 73 times

Re: Thermodynamics B/C

Post by JoeyC »

Liquids require a latent heat in order to fulfill the energy requirements needed to undergo a phase change, to overcome the bonding energies in that state.
UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1597
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA
Has thanked: 6 times
Been thanked: 15 times

Re: Thermodynamics B/C

Post by UTF-8 U+6211 U+662F »

JoeyC wrote:
Liquids require a latent heat in order to fulfill the energy requirements needed to undergo a phase change, to overcome the bonding energies in that state.
Good enough, your turn!
User avatar
Crimesolver
Member
Member
Posts: 111
Joined: July 31st, 2018, 2:07 pm
Division: C
State: CA
Pronouns: She/Her/Hers
Has thanked: 6 times
Been thanked: 22 times

Re: Thermodynamics B/C

Post by Crimesolver »

reboot...

Why is gold better at conducting heat than plastic?
Keep on going :)
User avatar
AarushMehta
Member
Member
Posts: 15
Joined: April 16th, 2017, 1:44 pm
Division: B
State: NY
Has thanked: 0
Been thanked: 0

Re: Thermodynamics B/C

Post by AarushMehta »

Crimesolver wrote:reboot...

Why is gold better at conducting heat than plastic?
the electrons in gold are delocalized and free moving.
R.C. Murphy JHS
2017: Dynamic, Expd, Herp
2018: Dynamic, Thermo, Wright, Quizbowl(NY Trial)
2019: Dynamic, Thermo, Herp, Density, Parasitology(NY Trial)
User avatar
Crimesolver
Member
Member
Posts: 111
Joined: July 31st, 2018, 2:07 pm
Division: C
State: CA
Pronouns: She/Her/Hers
Has thanked: 6 times
Been thanked: 22 times

Re: Thermodynamics B/C

Post by Crimesolver »

AarushMehta wrote:
the electrons in gold are delocalized and free moving.
Correct, your turn!
Keep on going :)
User avatar
AarushMehta
Member
Member
Posts: 15
Joined: April 16th, 2017, 1:44 pm
Division: B
State: NY
Has thanked: 0
Been thanked: 0

Re: Thermodynamics B/C

Post by AarushMehta »

Which law of thermodynamics does the concept of a perpetual motion machine violate?
R.C. Murphy JHS
2017: Dynamic, Expd, Herp
2018: Dynamic, Thermo, Wright, Quizbowl(NY Trial)
2019: Dynamic, Thermo, Herp, Density, Parasitology(NY Trial)
smayya337
Member
Member
Posts: 122
Joined: November 2nd, 2017, 5:15 pm
Division: Grad
State: VA
Pronouns: He/Him/His
Has thanked: 27 times
Been thanked: 32 times
Contact:

Re: Thermodynamics B/C

Post by smayya337 »

AarushMehta wrote:Which law of thermodynamics does the concept of a perpetual motion machine violate?
the second law, which states that some energy is always lost to the surroundings over time. As a result, the machine will keep losing energy until it comes to a complete stop.
TJHSST '22 | UVA '26
smayya337's Userpage
lianasv
Member
Member
Posts: 3
Joined: January 27th, 2019, 7:28 am
Division: B
Has thanked: 0
Been thanked: 0

Re: Thermodynamics B/C

Post by lianasv »

how do you calculate the speed of a molecule in an ideal gas?
2016:Optics/Invasive Species/Ecology
2017;Optics -1st region, 2nd St, 6th Nat, Rocks and Minerals (5th reg, 6th St, 15 Nat), Fast Facts- 5th region, Thermo-1st region
2018: Thermo-1st COBRA,8th Centerville Heredity- 9th COBRA. Water Quality- 11th Centerville, Density Lab-15th Centerville, 5th COBRA,
User avatar
Crimesolver
Member
Member
Posts: 111
Joined: July 31st, 2018, 2:07 pm
Division: C
State: CA
Pronouns: She/Her/Hers
Has thanked: 6 times
Been thanked: 22 times

Re: Thermodynamics B/C

Post by Crimesolver »

lianasv wrote:how do you calculate the speed of a molecule in an ideal gas?
Let's get this going again..
[math]v^{rms}=\sqrt{\frac{3RT}{M}}[/math]
Keep on going :)
User avatar
JoeyC
Member
Member
Posts: 307
Joined: November 7th, 2017, 1:43 pm
Division: Grad
State: TX
Has thanked: 503 times
Been thanked: 73 times

Re: Thermodynamics B/C

Post by JoeyC »

RMS (relative molecular speed0 =sqrt(3RT/M)
where R is the ideal gas constant, T is temperature, and M is mass.
Post Reply

Return to “2019 Question Marathons”

Who is online

Users browsing this forum: No registered users and 1 guest