Question

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:

Answer 1

Answer:

Explanation:Due to thermal expansion

ΔVv=3αΔT

Due to External pressure

Δvv=PK

Equating both Wi get

3αΔT=PK

Δ=P3αK