e. Calculate the amount of heat released when 5g of water at 30 degrees Celsius is changed into ice at 0oC.specific latent heat capacity of water is 4.2J/g/oC, specific latent heat of fusion of ice is 336J/g
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Answer:
Heat energy =mcΔT+mL
where, m = mass of water
c = specific heat capacity of water
L = specific latent heat of fusion of ice
ΔT = change in temperature
Therefore, heat energy released =5×4.2×20+5×336=420+1680 =2100J
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