Formula for specific latent heat of fusion isOptions:ALf = m/lfBlf = Lf/mCLf = lf/mDlf = Lfxm

9.  latent heat of fusion

What is the latent heat of fusion?Options:A) The heat required to change a substance from solid to liquid at its melting pointB) The heat required to change a substance from liquid to gas at its boiling pointC) The heat required to raise the temperature of a substance by one degree CelsiusD) The heat lost by a substance as it cools

When 3.64×10 5 J of energy is absorbed by 2.0kg of a pure solid at its melting point, exactly half of it melts. What is the latent heat of fusion of this solid?

The latent heats for some substances are given below.Substance Latent Heat of FusionJ/kg Latent Heat of VaporizationJ/kgLead 0.25 E5 8.68 E5Mercury 0.12 E5 2.7 E5How much heat is needed to melt 15.0 kg of lead at its melting point? 1.80 E5 J 3.75 E5 J 4.05 E6 J 1.30 E7 J

5.0GJ of energy is absorbed by 1.25×10 4 kg of a pure metal at its melting point. It melts and no temperature change is recorded. What is the latent heat of fusion of this metal?