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Social ScienceA cup with 1.25 kg of ice is at -10 celsius is heated until all the ice melts. How much energy was added to the ice? (Lf=334kJ/kg Cice=2 kJ/kg*c)c=celsius(answer: 443 kJ)
A cup with 1.25 kg of ice is at -10 celsius is heated until all the ice melts. How much energy was added to the ice? (Lf=334kJ/kg Cice=2 kJ/kg*c)
c=celsius
(answer: 443 kJ)
Expert Answer
Given,
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m 1.25 Kg T 263 K = 334 kJ/Kg = 2 kJ/Kg°C Cge
In given situation there will be two types of heat given to system,
(a) Sensible heat due to temperature change from -10◦C to 0◦
(b) Latent heat due to phase change from ice to water.
Heat due to temperatu...
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О - тсAт а-(1.25)(2x10)(о-(-10)) о - 25000 J Q 25 kJ
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