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

The heat of fusion for lead at 327.0 °C is 22.9 kJ/kg and the specific heat of lead is 0.130 kJ/kg °C. What is the energy needed to melt 100 grams of lead starting at 0 °C?

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?

0. A sample of solid iridium is at its melting point of 2466 ∘ C. It has a specific latent heat of fusion of 0.135MJ/kg. How much iridium would be melted if 200 kJ of thermal energy is supplied, assuming that there is no resulting temperature change?

The energy needed to increase the temperature of 1.5 kg of lead by 20 °C was 3.9 kJ.Calculate the specific heat capacity of lead._________ J/kg°CYou do not need to give units in your answer.

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?