Consider a rigid container with light movable piston. The piston separates two fluids X and Y of equal volume V and with bulk modulus B1 and B2. Their thermal coefficient of volume expansion are γ1 and γ2 respectively. Initially both fluids are at same temperature. Now their temperature is increased by Δθ.
If B1 & B2 are finite it is observed that piston remains at its position on increasing temperature.
(A) γ1B1 = B1 = γ2B2
(B) γ1B2 = γ2B1
(C) γ1B1 + γ2B2 = 0
(D) γ12B1 = γ22B2
