When water freezes into ice its volume increases by 2%. A rigid spherical shell is filled completely with water at 0∘C. Now water is freezed completely then Bulk stress on sunface of ice is N×109 Pa . Find the value of N. (Bulk’s modulus of water =2×1011 N/m2 )

BΔVV=ΔP 0.02×2×1011=ΔP⇒ΔP=4×109

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When water freezes into ice its volume increases by 2%. A rigid spherical shell is filled completely with water at $0^{\circ} C$ . Now water is freezed completely then Bulk stress on sunface of ice is $N \times 10^{9} P a$ . Find the value of N. (Bulk’s modulus of water $= 2 \times 10^{11} N / m^{2}$ )

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answer is 4.

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$B \frac{Δ V}{V} = Δ P$

$0.02 \times 2 \times 10^{11} = Δ P$

$\Rightarrow Δ P = 4 \times 10^{9}$

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