Consider the following reaction: Xe(g) + 2 F2(g) ? XeF4(g) Kc = 1.58 × 10-8 A reaction mixture initially contains 2.24 atm Xe, 4.27 atm F2, and no XeF4. If the equilibrium pressure of Xe is 0.34 atm, find the equilibrium constant (Kp) for the reaction