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Physics For Scientists & Engineers
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Short Answer

When water freezes, it expands by about 9.00%. What pressure increase would occur inside your automobile engine block if the water in it froze? (The bulk modulus of ice is 2.00×109 N/m2.)

ΔP=-1.65×108 N/m2

See the step by step solution

Step by Step Solution

Step 1: To find the pressure increase would occur inside your automobile engine block.

Given:

The initial volume is Vi

The change in volume is ΔV=9%Vi=0.09Vi

The final volume is Vf=Vi+ΔV=Vi+0.09Vi=1.09Vi

The bulk modulus is defined as:

B=-ΔPΔV/Vi

Solve for (ΔP):

ΔP=-BΔVVi=-B(Vf-Vi)Vi

Substitute numerical values:

ΔP=-(2×109)(0.09Ki)1.09Ki=-1.65×108 N/m2ΔP=-1.65×108 N/m2

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