Answer: A- Increases
The bulk modulus of elasticity with an increase in pressure increases.
Solution:
Like elastic solids, fluids also have elastic properties. Fluid compressibility is quantifiably given as the reciprocal of the bulk modulus of elasticity, K.
Bulk modulus K is defined as,
K = stress/strain = Change in pressure/(change in volume/ Original volume) = -[dp/(dV/V)]
A fluid's bulk modulus (K) is not constant but rises as pressure rises.
- K lowers as temperature rises for liquids.
- K rises with rising temperature for gases.
Hence the bulk modulus of elasticity with an increase in pressure increases.
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