At 320 K, a gas A 2 is 20 % dissociated to A ( g ) . The standard Gibbs free energy change at 320 K a n d 1 a t m i n J m o l – 1 is approximately: ( R = 8 .314 JK – 1 mol – 1 ; ln 2 = 0 .693 ; ln 3 = 1 .098 )

Step-by-step solution

Let assume initial moles is 1                A 2 →                                                                     2 A t=0 1 t=t 1 -0 . 2                                      0 . 2 × 2 P a r t i a l &