One mole each of \\( \\mathrm{He} \\) and \\( \\mathrm{A(g)} \\) are taken in a \\( 10 \\, \\mathrm{L} \\) closed flask and heated to \\( 400 \\, \\mathrm{K} \\) to establish the following equilibrium.
\\( \\mathrm{A(g)} \\rightleftharpoons \\mathrm{B(g)} \\)
\\( K_c \\) for this reaction at \\( 400 \\, \\mathrm{K} \\) is \\( 4.0 \\). The partial pressure (in atm) of \\( \\mathrm{He} \\) and \\( \\mathrm{B(g)} \\) are respectively (at equilibrium).
(Assume \\( \\mathrm{He} \\, \\mathrm{A(g)} \\) and \\( \\mathrm{B(g)} \\) behave as ideal gases)
(Given: \\( R = 0.082 \\, \\text{L atm K}^{-1} \\, \\text{mol}^{-1} \\))
