Question

Problem: A liquid with the volume of o.2 m3 at 300kPa is subjected to the pressure of3000kPa and its volume is found to decrease by 0.2%. Calculate the bulk modulus of elasticity of the liquid.

Answer 1

Answer on Question #53001-Physics-Mechanics-Kinematics-Dynamics

A liquid with the volume of 0.2 m3 at 300kPa is subjected to the pressure of 3000kPa and its volume is found to decrease by 0.2%. Calculate the bulk modulus of elasticity of the liquid.

Solution

The bulk modulus of elasticity of a liquid is

$$E = - \frac {\Delta p}{\left(\frac {\Delta V}{V}\right)} = \frac {3 0 0 0 \mathrm {k P a} - 3 0 0 \mathrm {k P a}}{0 . 0 0 2} = 1 3 5 0 \mathrm {M P a}.$$

Answer: 1350MPa.

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