Asample of water at 0 ºc has a mass of 10 grams. how much energy is absorbed when this sample melts?

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

How does a large body of water, such as the ocean, influence climate?

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy