Thermal diffusivity of a material __________________?
Correct answer: B. All A., B. and C.
- A. Has the unit m2 /sec
- B. All A., B. and C.
- C. Is the ratio of thermal conductivity to thermal capacity
- D. Is defined as K/ρ . Cp
Explanation
Thermal diffusivity is α = k/(ρCp), with units m²/s, and represents how rapidly temperature disturbances spread through a material. Thus all three statements describe the same property correctly.
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