Question

Asked Oct 22, 2019

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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? (L_{f}=334kJ/kg C_{ice}=2 kJ/kg*c)

c=celsius

(answer: 443 kJ)

Step 1

Given,

Step 2

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.

Step 3

Heat due to temperatu...

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