Estimate the ΔGo for the following reactions. What is ΔGo at 298 K if p = 0.25 bar for each gaseous substance in the below reactions:

1. 2 H2(g) + O2(g) --> 2 H2O(l)

2.C(s, graphite) + 2 H2(g) --> CH4(g)

I found ΔG for both reactions, -474.2kJ and -50.5kJ respectively, WITHOUT incorporating the 0.25 bar pressure. How would I go about including it?