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How much energy is required to freeze 20 ml of water already at 0.0 0C?

How Much Energy Is Required To Freeze 20 Ml Of Water Already At 00 0C class=

Sagot :

Given

Amount of water,

[tex]m=20\text{ ml}[/tex]

Temperature is,

[tex]T=0.00C[/tex]

To find:

Energy required to freeze the water.

Explanation:

The latent heat of fusion is

[tex]L=33.5\times10^4\text{ J/}kg[/tex]

Converting the amount of water to kg,

[tex]m=0.020kg[/tex]

Thus the energy required is:

[tex]\begin{gathered} H=mL \\ \Rightarrow H=0.020\times33.5\times10^4=0.67\times10^4J \end{gathered}[/tex]

Conclusion:

The amount of energy required is

[tex]0.67\times10^4J[/tex]

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