Why is ice melting called an endothermic process and not an endothermic reaction?

Does the energy in a solid increase or decrease when changing to a liquid?

The conventional equilibrium constant expression (kc) for the system below is: 2icl(s) ⇄ i2(s) + cl2(g) [cl2] ([i2] + [cl2])/2[icl] [i2][cl2]/[icl]2 none of the listed answers are correct [i2][cl2]/2[icl]

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both