Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?
Re: Thermodynamics B/C
Posted: September 4th, 2018, 11:56 am
by Riptide
TheChiScientist wrote:Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?
F = -459.67
C = -273.15
K = 0
R = 0
Re: Thermodynamics B/C
Posted: September 4th, 2018, 12:03 pm
by TheChiScientist
Riptide wrote:
TheChiScientist wrote:Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?
F = -459.67
C = -273.15
K = 0
R = 0
Correct! Your turn.
Re: Thermodynamics B/C
Posted: September 4th, 2018, 1:25 pm
by UTF-8 U+6211 U+662F
TheChiScientist wrote:Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?
(Kelvin doesn't use degrees because it's absolute. Rankine uses degrees anyway because it likes being special.)
Re: Thermodynamics B/C
Posted: September 4th, 2018, 2:52 pm
by TheChiScientist
UTF-8 U+6211 U+662F wrote:
TheChiScientist wrote:Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?
(Kelvin doesn't use degrees because it's absolute. Rankine uses degrees anyway because it likes being special.)
Stop being so technical shemcnical. On a test the graders will want it in degrees format.
Re: Thermodynamics B/C
Posted: September 5th, 2018, 9:49 am
by Riptide
An ideal Carnot heat engine absorbs heat from a reservoir at 650° C with an efficiency of 28%. What is the exhaust temperature in Celsius?
Re: Thermodynamics B/C
Posted: September 5th, 2018, 10:07 am
by Justin72835
Riptide wrote:An ideal Carnot heat engine absorbs heat from a reservoir at 650° C with an efficiency of 28%. What is the exhaust temperature in Celsius?
391.5 degrees Celcius
Re: Thermodynamics B/C
Posted: September 5th, 2018, 10:33 am
by Riptide
Justin72835 wrote:
Riptide wrote:An ideal Carnot heat engine absorbs heat from a reservoir at 650° C with an efficiency of 28%. What is the exhaust temperature in Celsius?
391.5 degrees Celcius
Nice your turn.
Re: Thermodynamics B/C
Posted: September 5th, 2018, 4:06 pm
by HeadphoneMonster
Find the work performed by 2.5 moles of oxygen isothermally expanding at 25◦C from 1.5 atm to .75 atm of pressure.(Answer preferred in Joules).
Re: Thermodynamics B/C
Posted: September 5th, 2018, 4:21 pm
by UTF-8 U+6211 U+662F
HeadphoneMonster wrote:Find the work performed by 2.5 moles of oxygen isothermally expanding at 25◦C from 1.5 atm to .75 atm of pressure.(Answer preferred in Joules).
Generally, the person who answers asks the question, but it's fine.
Correct me if I'm wrong (especially if I messed up the final number of significant digits).