How does the change of macroeconomic equilibrium relate to the 'goals of policy makers?

In thinking about the overall health of the macroeconomy, it is useful to consider three primary goals: economic growth, full employment (or low unemployment), and stable prices (or low inflation).

it should be p1 v1 = p2 v2

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm