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Q 2518178009.     (a) In the following equilibrium
`N_2O_4(g) ⇋ 2NO_2` (g)
when 5 moles of each are taken and the temperature is kept at 298 K, the total pressure was found to be 20 bar.
`DeltaG_f^o (N_2O_4) = 100` kJ
`Delta_f^o (NO_2) = 50 ` kJ
(i) Find `Delta`G of the reaction.
(ii) The direction in which the equilibrium of the reaction shifts.
(b) A graph is plotted for a real gas which follows van der Waal 's equation with P V, taken on y-axis and P on x-axis. Find the intercept of the line where V,. is molar volume.
JEE 2004 Mains
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)