A gaseous ammonia $(MW=17\frac{g}{m}ol)$ is stored in a $80-L$ tank at $330K.$ The pressure is kept at $16$atm inside the tank. Determine the change in entropy $($in $J/$Farenheit $)$ if it is heated to $375K$ at constant pressure. Assume heat capacity of ammonia at constant pressure to be $2\mathrm{.}13\frac{J}{g}-K.$