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Re: Thermodynamics B/C

Posted: January 10th, 2019, 8:54 am
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.

Re: Thermodynamics B/C

Posted: January 10th, 2019, 12:45 pm
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!

Re: Thermodynamics B/C

Posted: January 23rd, 2019, 7:51 pm
by Crimesolver
reboot...

Why is gold better at conducting heat than plastic?

Re: Thermodynamics B/C

Posted: January 24th, 2019, 9:44 pm
by AarushMehta
Crimesolver wrote:reboot...

Why is gold better at conducting heat than plastic?
the electrons in gold are delocalized and free moving.

Re: Thermodynamics B/C

Posted: January 24th, 2019, 10:43 pm
by Crimesolver
AarushMehta wrote:
the electrons in gold are delocalized and free moving.
Correct, your turn!

Re: Thermodynamics B/C

Posted: January 25th, 2019, 12:52 pm
by AarushMehta
Which law of thermodynamics does the concept of a perpetual motion machine violate?

Re: Thermodynamics B/C

Posted: January 27th, 2019, 10:44 am
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.

Re: Thermodynamics B/C

Posted: January 27th, 2019, 4:53 pm
by lianasv
how do you calculate the speed of a molecule in an ideal gas?

Re: Thermodynamics B/C

Posted: February 21st, 2019, 9:41 am
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]

Re: Thermodynamics B/C

Posted: February 21st, 2019, 11:58 am
by JoeyC
RMS (relative molecular speed0 =sqrt(3RT/M)
where R is the ideal gas constant, T is temperature, and M is mass.