JEE Main 2021 Chemistry question

For the reaction A(g) (B)(g), the value of he equilibrium constant at 300 K and 1 atm is equal to 100.0. The value of for the reaction at 300 K and 1 atm in J mol–1 is – xR, where x is (Rounded of to the nearest integer) (R = 8.31 J K–1 and ln 10 = 2.3)