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questions about caliometry/homework

Chemistry
Tutor: None Selected Time limit: 0 Hours

What quantity of heat, in joules, is released when 20.0 g of water at 36.0°C is cooled to ice at -24.0°C. and

Apr 25th, 2015

Q= heat provided by cooling water from 36 c to 0c + latent heat at 0c + cooling of ice to -24

= 20 g x 4.18 j/g k x 36 + 20g ( 152 j/g) + 20x 2.11 j/g k x 24

= 4270.2 J

Answer:  4270.2 J.

Please note that I have assumed latent heat of ice at 152 j/g as it is not given . please verify and correct it if necessary.

Apr 25th, 2015

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