How many heat is needed to melt 1.5kg of ice and then to raise the temperature of the resulting water 50 degree Celsius ​

Question

How many heat is needed to melt 1.5kg of ice and then to raise the temperature of the resulting water 50 degree Celsius
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Amity 5 years 2021-07-30T14:33:01+00:00 1 Answers 32 views 0

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  1. Edana
    0
    2021-07-30T14:34:32+00:00
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    Answer:

    • The amount of heat required to melt ice and raise the temperature of water T^oCToC is

    Q=mL_f+mc\Delta TQ=mLf+mcΔT

    Here m=1.5 kgm=1.5kg

    L_f=3.33*10^5 J/kgLf=3.33∗105J/kg is Latent heat of fusion of ice.

    c=4186 J/kg.^oCc=4186J/kg.oC is heat capacity of water.

    \Delta T=50 ^oC-0^oC=50^oCΔT=50oC−0oC=50oC

    So,

    Q=(1.50)[3.33*10^5 +(4186)(50)]=8.13*10^5 JQ=(1.50)[3.33∗105+(4186)(50)]=8.13∗105J

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