An external pressure P is applied on cub...

An external pressure P is applied on cube at `0" "^(@)C` so that it is equally compressed from all sides. K is the bulk modulus of the material of the cube and `alpha` is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by heating. The temperature should be raised by

`(P)/(3 alpha K)`

`(P)/(alphaK)`

`(3alpha)/(PK)`

`3PKalpha`

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