Find the change in the volume of 1.0 litre kerosene when it is subjected to an extra pressure of 2.0 × 105 N m-2 from the following data. Density of kerosene = 800 kg m-3 and speed of sound in kerosene = 1330 m s-1.
Hrishant Goswami
12 Years agoGrade 10
1 Answer
Jitender Pal
12 Years ago
Sol. We know that v = √K / p
Where K = bulk modulus of elasticity
⇒ K = v^2 p = (1330)2 × 800 N/m^2
We know K = (F/A/∆V/V)
⇒ ∆V = Pressure/K = 2 * 10^5/1330 * 1330 * 800
So, ∆V = 0.15 cm^5