Material a has a melting point of 34°c whereas material b has a melting point of 56°c. both materials have been placed in an oven at 50°c describe the state of each material after being being in the oven for a period of time.
i'm confused, if material b is on for the same amount of time does that mean that it has liquified and material a has melted slightly?

Explanation:

Material A has a melting point of 34°C

Material B has a melting point of 56°C

Both materials, lets say a metal have been subjected to a temperature of 50°C

After a period of time, both of them would have melted to their liquid state.

The atoms of the solids would vibrates and the bonds would begin to break to form melt.

Material A would be the first to melt as it has a lower melting point. The lower the melting point, the faster and quicker it would reach its melting temperature.

Material B would need to accumulate more heat and its temperature would continue to rise for the phase change to occur. As it reaches the 50°C mark, the bonds are set free and a melt forms.

answer; the enthalpy of both the return air and the outside air. ;