A material has a bulk modulus of 200 GPa. If the pressure on the material is inc
Practice Questions
Q1
A material has a bulk modulus of 200 GPa. If the pressure on the material is increased by 10 MPa, what is the fractional change in volume?
0.00005
0.0001
0.0002
0.00025
Questions & Step-by-Step Solutions
A material has a bulk modulus of 200 GPa. If the pressure on the material is increased by 10 MPa, what is the fractional change in volume?
Step 1: Understand the terms. The bulk modulus (B) is a measure of a material's resistance to uniform compression. It is given in gigapascals (GPa).
Step 2: Convert the bulk modulus from GPa to MPa for consistency. 1 GPa = 1000 MPa, so 200 GPa = 200,000 MPa.
Step 3: Identify the change in pressure (ΔP). In this case, ΔP = 10 MPa.
Step 4: Use the formula for fractional change in volume: ΔV/V = ΔP/B.
Step 5: Substitute the values into the formula: ΔV/V = 10 MPa / 200,000 MPa.
Step 6: Calculate the result: ΔV/V = 0.00005.
Bulk Modulus – The bulk modulus is a measure of a material's resistance to uniform compression, defined as the ratio of pressure increase to the fractional decrease in volume.
Fractional Change in Volume – The fractional change in volume is calculated using the formula ΔV/V = ΔP/B, where ΔP is the change in pressure and B is the bulk modulus.