It takes 2.97[kJ] of heat to turn a 450-[g] of block of an unknown substance to...
It takes 2.97[kJ] of heat to turn a 450-[g] of block of an unknown substance to liquid of the same mass, at the same temperature. What is the latent heat of fusion (in [J/kg] ) of the substance? Round off your answer to the nearest whole number.
Homework Answers
Phase change process
Heat supplied is absorbed by the material to change the phase from solid to liquid state.
Q(supplied) = mass(m) x Latent heat of fusion(L)
Mass(m) = 0.45 kg
Q(supplied) = 2970 joule
2970 = 0.45 x L
L = 6600 J/kg
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