Bulk modulus is the measure of a substance's resistance to compression under pressure. It is important in calculating change in volume because it helps determine how much a substance's volume will change when subjected to external pressure.
Bulk modulus is calculated by dividing the change in pressure by the corresponding change in volume. It is typically represented by the letter K and has units of pressure, such as pascals (Pa) or pounds per square inch (psi).
Bulk modulus and compressibility are inversely related. This means that substances with higher bulk modulus values are less compressible, while substances with lower bulk modulus values are more compressible.
No, bulk modulus cannot be negative. It is a measure of a substance's resistance to compression, so a negative value would indicate that the substance is expanding under pressure.
Bulk modulus is used in a variety of real-world applications, such as in the design of hydraulic systems, determining the elasticity of materials, and in geology to study the properties of rocks and minerals under pressure. It is also used in industries such as construction, oil and gas, and manufacturing to ensure the stability and strength of materials under different pressures.