Engineering Thermodynamics

Which of the following items is not a path function?

  • A. Heat
  • B. Work
  • C. Kinetic energy
  • D. Thermal conductivity
Answer: Option D.

Heat and work are path functions because they depend on how a sysem changes from initial to final state, hence they are state functions.

Thermal conductivity is mainly a function of the motion of the free electrons therefore property of a material, not a path function.

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