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Calculate the heat (in calories) released when 115 g of CHCl3 changes from a liquid to a solid at
its freezing point.

Sagot :

Answer:  8855 Joules energy is released when 115 g of [tex]CHCl_3[/tex] changes from a liquid to a solid at  its freezing point.

Explanation:

Latent heat of freezing is the amount of heat released to convert 1 mole of  liquid to solid at atmospheric pressure.

Amount of heat released to freeze 1 gram of [tex]CHCl_3[/tex] = 77 J/g

Mass of [tex]CHCl_3[/tex] given = 115 gram

Heat released when 1 g of [tex]CHCl_3[/tex] is freezed = 77 J

Thus Heat released when 115 g of [tex]CHCl_3[/tex] is freezed =[tex]\frac{77}{1}\times 115=8855J[/tex]

Thus 8855 Joules energy is released when 115 g of [tex]CHCl_3[/tex] changes from a liquid to a solid at  its freezing point.

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