Answers and Explanations

REVIEW QUESTIONS

1 .

It  can also    be  expressed   in  terms   of  pressures.

2 . A

The larger  the value   of  K,  the more    heavily the products    are favored over    the reactants.

3 .  (A)    The reaction    shifts  to  the left.

(B) The reaction    will    remain  unchanged.  Changing    the volume  constraints on  a   reaction

that    involves    gases   will    affect  the equilibrium only    when    one side    of  the reaction    has a

greater number  of  moles   of  gases   than    the other.  For this    reaction,   there   is  one mole    of  gas

on  each    side.

(C) The reaction    would   shift   to  the right.  By  removing    methane gas from    the reaction

vessel, the reactant    concentrations  are effectively increased   relative    to  the product

concentrations, and the reaction    will    go  to  the right   to  correct for this.

4 . C