[quejay]

can someone help me solve this;
calculate the equilibrium constant for the reaction N2(g)+O2(g)-->NO2(g) at 298K

Delta G=173kJ/mol

R=8.3J/mol

T=298K

I am using the equation  delta G+RT=lnK
Thus 173+.0083*298=175.4734

Am I right to this point? where do i go from here?