Are all reversible reactions at equilibrium? explain why or why not.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j