Question: "When water freezes its volume increases by 4..."

Mason Cherry

Answered question

2022-12-30

When water freezes its volume increases by

4 %

. What volume of water is required to make

221 c m^{3}

of ice?

Yaretzi Huynh

Beginner2022-12-31Added 9 answers

Assume that x

c m^{3}

of water is needed..
The answer states that the volume of water increases by 4% when it freezes, so we have
volume of cube for x

c m^{3}

of water

= x + 4100 \times x = x + \frac{x}{25} = \frac{26 x}{25}

And, given volume of ice cube

= 221 c m^{3}

∴ \frac{26 x}{25} = 221 \Rightarrow x = \frac{221 \times 25}{26} = 212.5

Hence, the volume of water required is

212.5 c m^{3}

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