Physics 212 Lecture: "Thermodynamics II." Jan 21, 1998

• There are several special cases in which processes are relatively simple to understand:
  • Isobaric: constant pressure
  • Isochoric: constant volume
  • Isothermal: constant temperature
  • Adiabatic: no heat gain or loss
• In each of the above cases, one can simplify the basic equation of the First Law of Thermodynamics
• The molar specific heat capacity relates heat added to a substance to its change in temperature:
• Specifically, molar heat capacity of a substance is the amount of energy required to raise one mole by one degree Kelvin
• Molar specific heat capacity for an ideal monatomic gas depends on how the process occurs:
  • If isobaric, then Cp = (5/2)*R
  • If isochoric, then Cp = (3/2)*R

This lecture discusses material in Chapter 15 of Cutnell and Johnson.

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Copyright © Michael Richmond. This work is licensed under a Creative Commons License.