state of affairs vs situation

state of affairs and situation both are nouns.

Word	Noun	Adjective	Verb	Adverb
state of affairs	Yes	No	No	No
situation	Yes	No	No	No

As nouns, state of affairs and situation are synonyms defined as:

state of affairs and situation: the general state of things; the combination of circumstances at a given time

state of affairs (noun)	situation (noun)
the general state of things; the combination of circumstances at a given time	a job in an organization
	physical position in relation to the surroundings
	the general state of things; the combination of circumstances at a given time
	a condition or position in which you find yourself
	a complex or critical or unusual difficulty