Re: Thermodynamics B/C
Posted: October 10th, 2018, 5:23 pm
Yep!UTF-8 U+6211 U+662F wrote:Jacobi wrote:What is the equation for the efficiency of a Carnot heat engine??
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Re: Thermodynamics B/C
Posted: October 10th, 2018, 5:26 pm
All right, define heat, temperature, thermal energy, and internal energy. Include SI units.
Re: Thermodynamics B/C
Posted: October 15th, 2018, 2:59 pm
UTF-8 U+6211 U+662F wrote:All right, define heat, temperature, thermal energy, and internal energy. Include SI units.
Heat is the transfer of energy in the form of temperature. It is in Joules. Temperature is a quantitative measure of the thermal energy of a system. It is measured in Kelvins. It is related to the particle's speeds of random motion. Thermal energy is the kinetic energy of particles moving randomly in a substance. It is measured in Joules. Internal energy is thermal energy along with chemical energy, nuclear energy, and all other forms of non-macromechanical non-radiant energy. It is in Joules.
Re: Thermodynamics B/C
Posted: October 15th, 2018, 3:10 pm
Jacobi wrote:UTF-8 U+6211 U+662F wrote:All right, define heat, temperature, thermal energy, and internal energy. Include SI units.Heat is the transfer of energy in the form of temperature. It is in Joules. Temperature is a quantitative measure of the thermal energy of a system. It is measured in Kelvins. It is related to the particle's speeds of random motion. Thermal energy is the kinetic energy of particles moving randomly in a substance. It is measured in Joules. Internal energy is thermal energy along with chemical energy, nuclear energy, and all other forms of non-macromechanical non-radiant energy. It is in Joules.
You said heat is the transfer of energy in the form of temperature. I think you meant heat is the transfer of energy because of a difference in temperature.
Re: Thermodynamics B/C
Posted: October 16th, 2018, 6:52 am
Give three temperature scales than are not Celsius, Fahrenheit, or Kelvin and give conversions between them.
Re: Thermodynamics B/C
Posted: October 16th, 2018, 8:34 am
Rankine= Kelvin X 9/5
Delisle= (373.15-Kelvin) X 3/2
Newton= (Kelvin-273.5) X33/100
Converting Kelvin to these units.
Delisle= (373.15-Kelvin) X 3/2
Newton= (Kelvin-273.5) X33/100
Converting Kelvin to these units.
Re: Thermodynamics B/C
Posted: October 16th, 2018, 12:17 pm
I wouldn't use the Newton scale because even though it has lots of historical importance, it's vague and inconsistent when compared to modern temperature scales. You can't convert temperatures reliably or simply from something like Kelvin to the Newton scale. I would use something like the Réaumur scale (which was widely used in Russia).TheChiScientist wrote:Rankine= Kelvin X 9/5
Delisle= (373.15-Kelvin) X 3/2
Newton= (Kelvin-273.5) X33/100
Converting Kelvin to these units.
Re: Thermodynamics B/C
Posted: October 16th, 2018, 12:20 pm
You have to know all of them, so why not?
Re: Thermodynamics B/C
Posted: October 16th, 2018, 12:22 pm
It's not that the Newton scale isn't historically important and shouldn't be included in your notes; it's that there are many different ways of converting Newton's measurements to modern temperature scales.JoeyC wrote:You have to know all of them, so why not?
Re: Thermodynamics B/C
Posted: October 16th, 2018, 2:16 pm
You're good to go!TheChiScientist wrote:Rankine= Kelvin X 9/5
Delisle= (373.15-Kelvin) X 3/2
Newton= (Kelvin-273.5) X33/100
Converting Kelvin to these units.