An external pressure p is applied on a cube at 0c so that it is equally compressed from all sides. K is the bulk modulus of the material of the cube and a is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by hearing. The temperature should be raised by:
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Explanation:Due to thermal expansion
ΔVv=3αΔT
Due to External pressure
Δvv=PK
Equating both Wi get
3αΔT=PK
Δ=P3αK
Rajeevsts1967:
Is it correct?
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