Some element can be either solid or liquid. at the melting point, the liquid has 8 × 10-22 j more enthalpy per atom than the solid. the liquid also has 6 × 10-24 j/k more entropy per atom than the solid.

1) what is the latent heat per mole of the phase transition between the solid and the liquid?

? j/mole

2) at what temperature does the melting transition occur?

tmelting = ? k

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)