Thermodynamics B/C

[TheChiScientist]

Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?

[Riptide]

Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?

Answer (Click to Show Hidden Text)

F = -459.67
C = -273.15
K = 0
R = 0

[TheChiScientist]

Let start of the year with something simple.
Define absolute zero in degrees using the following units of temperature.
F=?
C=?
K=?
R=?

Answer (Click to Show Hidden Text)

F = -459.67
C = -273.15
K = 0
R = 0

Correct! Your turn.

[UTF-8 U+6211 U+662F]

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.)

[TheChiScientist]

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.

[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?

[Justin72835]

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?

Answer (Click to Show Hidden Text)

391.5 degrees Celcius

[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?

Answer (Click to Show Hidden Text)

391.5 degrees Celcius

Nice your turn.

[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).

[UTF-8 U+6211 U+662F]

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.

Click to Show Answer

Correct me if I'm wrong (especially if I messed up the final number of significant digits).

Justin can go.