For the reaction Ag⇌Bg,  the value of the equilibrium constant at 300 K and 1 atm is equal to 100.0. The value of ΔrG for the reaction at 300 K and 1 atm in J mol−1 is – xR, where x is ________. (Rounded off to the nearest integer).R=8.31 J mol−1K−1 and ln 10=2.3