Outline in which direction the equilibrium 2 points will shift in response to an increase in pressure:
CO(g) + 2H2 = CH3OH(9)

Explanation:

  Reaction equation:

             CO + 2H₂  →  CH₃OH

All the species are in gaseous state and the equation is balanced.

 Change in pressure only affects equilibrium involving a gas or gases.

Based on Le Chatelier's principle, an increase in pressure will shift the position of equilibrium to the side having smaller volume or number of moles and vice versa.

          CO + 2H₂  →  CH₃OH

 3moles of gases     1 mole of gas

  An increase in pressure favors the forward reaction. A decrease in pressure will favor the backward step.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

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