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Question 30823
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Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Superficial Expansion MCQ

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Superficial ExpansionEasyQuestion 30823

Question

For an isotropic solid, coefficient of superficial expansion β relates to α as:
  1. A
    β = α/2
  2. B
    β = α
  3. C
    β = 2α
    Correct
  4. D
    β = 3α

Correct answer

β = 2α

Explanation

For isotropic expansion, β ≈ 2α and volume coefficient γ ≈ 3α.

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