Answer both parts please.

Once melted, additional heat transfer into the liquid raises its temperature until it reaches the boiling point. Again, at the boiling point, additional heat time left... goes into vaporizing the liquid until it has transformed into a gas. The amount of heat required to boil a given amount of a liquid int() ga27axe3 3 latent heat of vaporization. Like specific heat, these latent heat values are properties of the particular material. For example, the latent heat of fusion of water is 334 J/g; that is, 334 J of heat must be transferred into 1 gram of solid ice to melt it entirely into liquid water. Similarly, it requires 2,265 ] to boil 1 gram of water entirely into a gas-the latent heat of vaporization is 2,265 J/g (or equivalently, 2.27 J/kg). Mathematically, we can describe the amount of heat transfer H into a substance to melt it, when it's at its melting temperature, as H = mLA where m is the mass and L is the latent heat of fusion. Similarly, the amount of heat transfer into a substance to boil it, when it's at its boiling temperature, is H = mLy, where again m is the mass and L, is the latent heat of vaporization. Latent heats also describe the amount of heat transferred out of a substance when it condenses from a gas to a liquid (for latent heats of vaporization) or when it freezes from a liquid into a solid (for latent heats of fusion). In such cases, the heat transferred out of the substance is a negative number. Let's try a few simple examples. How much heat transfer is required to completely boil 2500 g of water (already at its boiling point of 100.C) into a gas? A ceramic container used for melting metals (called a crucible) contains 1.30 kg of a molten metal. The liquid metal cools until it reaches its melting point of 1,749.C. A scientist then measures that 2.99 x 104 ] of heat is transferred out of the metal before it completely solidifies. What is the latent heat of fusion of this metal, in J/g? (Be careful with units!) J/g Submit Skip (you cannot come back)