please help! i got this wrong and im not sure where i went wrong. please show step by step! thankyou

Consider this reaction: I2(g)+Cl2(g)2ICl(g)K=6.91103at460K Calculate rG for the reaction at 460K under each of the following conditions: P12=0.325barPCl2=0.421barPICl=2.55bar Express your answer using one decimal place and include the appropriate units. X Incorrect; Try Again; One attempt remaining