Question

The increase in pressure required to decrease the $200$ litres volume of a liquid by $0.004$% in kPa is : (bulk modulus of the liquid $=$ $2100MPa$)

• A. $8.4$
• B. $84$
• C. $92.4$
• D. $168$

Answer 1

Answer: (B)

$84$

$B=P\Delta v/v$
$P=B\times \frac{\Delta v}{v}$
$=2100\times {10}^3\times \frac{0.004}{100}$
$=84k$ pa.