For the reaction: 2HI (g)⇌H2 (g)+I2 (g) The degree of dissociation (A) of HI (g) is related to equilibrium constant, Kp by the expression
AT temperature T, a compound AB2(g) dissociates according to the reaction, 2AB2(g)⇌2AB(g)+B2(g) with a degree of dissociation, x (where x << 1). If KP and P are equilibrium constant and equilibrium pressure respectively, the value of x is