Indicate the direction ion which the equilibrium is expected to shift, if at all.?

Question

H2O(l)+energy<->H2O(g)

Sorry, I meant- indicate the direction in which the equlibrium is...

Answer 1

The equilibrium will shift the left.

As you know, if you add heat (energy) to liquid water, it turns into steam. In order for you to make that gaseous water stay as vapor, you need to keep putting in energy. This means that the equilibrium to the product side (--->) is NOT favored. Heated steam eventually cools down to liquid water.

Another way of thinking about it is that equilibrium always shifts to the side where it is energetically more favorable. The simple fact that on earth, there is so much abundance of liquid water compared to gaseous water proves that water indeed is more stable product and the left (<---) side of the equilibrium is more favored.

Answer 2

it will shift to the left because it is an endothermic reaction and non-spontaneous