The coefficient of expansion of a crystal in one direction (x-axis) is 2.0×10−6 K−1 and that in the other two perpendicular directions (y and z-axes) is 1.6×10−6 K−1,What is the coefficient of cubical expansion of the crystal?

The coefficient of expansion of a crystal in one direction (x-axis) is

1.	The coefficient of expansion of a crystal in one direction (x-axis) is 2.0×10−6 K−1 and that in the other two perpendicular directions (y and z-axes) is 1.6×10−6 K−1,What is the coefficient of cubical expansion of the crystal?
Answer» The coefficient of expansion of a crystal in one direction (x-axis) is $2.0 \times 10^{- 6} K^{- 1}$ and that in the other two perpendicular directions (y and z-axes) is $1.6 \times 10^{- 6} K^{- 1},$ What is the coefficient of cubical expansion of the crystal?

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The coefficient of expansion of a crystal in one direction (x-axis) is 2.0×10−6 K−1 and that in the other two perpendicular directions (y and z-axes) is 1.6×10−6 K−1,What is the coefficient of cubical expansion of the crystal?

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