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A sample of a liquid is kept at 1 atm. It is compressed to 5 atm which leads to a change of volume of 0.8 cm3. If the bulk modulus of the liquid is 2 GPa, the initial volume of the liquid was litre. (Take 1 atm = 105 Pa)
4
B = P V/V V = B V P
P = 5 - 1 = 4 atm = 4 105 Pa, V = 0.8 10-6 m3, B = 2 109 Pa
V = 2 109 0.8 10-64 105
= 4 10-3 m3 = 4 litre
Answer: 4
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