Question

The bulk modulus of a liquid is 3 × 10¹⁰ Nm^-2. The pressure required to reduce the volume of liquid by 2% is ______.

Options

• 3 × 10⁸ Nm^-2

• 9 × 10⁸ Nm^-2

• 6 × 10⁸ Nm^-2

• 12 × 10⁸ Nm^-2

Answer 1

The bulk modulus of a liquid is 3 × 10¹⁰ Nm^-2. The pressure required to reduce the volume of liquid by 2% is 6 × 10⁸ Nm^-2.

Explanation:

Bulk modulus, B =  `-(DeltaP)/((DeltaV)/V)`

⇒ ΔP = `-B(DeltaV)/V`

`|DeltaP| = +3 xx 10^10 xx 0.02 = 6 xx 10^8`